{"id":125215,"date":"2023-09-03T01:28:00","date_gmt":"2023-09-02T19:58:00","guid":{"rendered":"https:\/\/www.kopykitab.com\/blog\/?p=125215"},"modified":"2023-12-21T11:14:54","modified_gmt":"2023-12-21T05:44:54","slug":"rd-sharma-class-9-solutions-chapter-4-mcqs","status":"publish","type":"post","link":"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/","title":{"rendered":"RD Sharma Class 9 Solutions Chapter 4 MCQS (Updated for 2024)"},"content":{"rendered":"\n<p><img class=\"alignnone wp-image-125222 size-full\" src=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Class-9-Solutions-Chapter-4-MCQS.jpg\" alt=\"RD Sharma Class 9 Solutions Chapter 4 MCQs\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Class-9-Solutions-Chapter-4-MCQS.jpg 1200w, https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Class-9-Solutions-Chapter-4-MCQS-768x432.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><strong>RD Sharma Class 9 Solutions Chapter 4 MCQs: <\/strong>You can ace your next Class 9 Maths with the<a href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-for-maths\/\" target=\"_blank\" rel=\"noopener\"> RD Sharma Solutions Class 9 Maths<\/a>. Subject matter experts have designed easy-to-understand solutions just for you. To know more about the <a href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-solutions-class-9-maths-chapter-4-algebraic-identities\/\" target=\"_blank\" rel=\"noopener\">RD Sharma Class 9 Solutions Chapter 4 <\/a> MCQs, read the whole blog.\u00a0<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_47_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"ez-toc-toggle-icon-1\"><label for=\"item-69d2a28dbda59\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-69d2a28dbda59\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/#access-answers-of-rd-sharma-class-9-solutions-chapter-4-mcqs\" title=\"Access answers of RD Sharma Class 9 Solutions Chapter 4 MCQS\">Access answers of RD Sharma Class 9 Solutions Chapter 4 MCQS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/#rd-sharma-class-9-solutions-chapter-4-algebraic-identities-mcqs\" title=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS\">RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/#faqs-on-rd-sharma-class-9-solutions-chapter-4-mcqs\" title=\"FAQs on RD Sharma Class 9 Solutions Chapter 4 MCQs\">FAQs on RD Sharma Class 9 Solutions Chapter 4 MCQs<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/#how-many-questions-are-there-in-rd-sharma-class-9-solutions-chapter-4-mcqs\" title=\"How many questions are there in RD Sharma Class 9 Solutions Chapter 4 MCQs?\">How many questions are there in RD Sharma Class 9 Solutions Chapter 4 MCQs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/#from-where-can-i-download-the-pdf-of-rd-sharma-class-9-solutions-chapter-4-mcqs\" title=\"From where can I download the PDF of RD Sharma Class 9 Solutions Chapter 4 MCQs?\">From where can I download the PDF of RD Sharma Class 9 Solutions Chapter 4 MCQs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/#how-much-does-it-cost-to-download-the-pdf-of-rd-sharma-class-9-solutions-chapter-4-mcqs\" title=\"How much does it cost to download the PDF of RD Sharma Class 9 Solutions Chapter 4 MCQs?\">How much does it cost to download the PDF of RD Sharma Class 9 Solutions Chapter 4 MCQs?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"access-answers-of-rd-sharma-class-9-solutions-chapter-4-mcqs\"><\/span><strong>Access answers of RD Sharma Class 9 Solutions Chapter 4 MCQS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"entry-content\">\n<h2><span class=\"ez-toc-section\" id=\"rd-sharma-class-9-solutions-chapter-4-algebraic-identities-mcqs\"><\/span>RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>These Solutions are part of\u00a0<a href=\"https:\/\/www.learninsta.com\/rd-sharma-class-9-solutions\/\" target=\"_blank\" rel=\"noopener\">RD Sharma Class 9 Solutions<\/a>. Here we have given RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS<\/p>\n<p>Question 1.<br \/><img class=\"alignnone size-full wp-image-65732\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q1.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q1.1\" width=\"286\" height=\"111\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65733\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q1.2.png\" sizes=\"(max-width: 375px) 100vw, 375px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q1.2.png 375w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q1.2-300x171.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q1.2\" width=\"375\" height=\"214\" \/><\/p>\n<p>Question 2.<br \/><img class=\"alignnone size-full wp-image-65734\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q2.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q2.1\" width=\"296\" height=\"114\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65735\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q2.2.png\" sizes=\"(max-width: 373px) 100vw, 373px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q2.2.png 373w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q2.2-300x220.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q2.2\" width=\"373\" height=\"274\" \/><\/p>\n<p>Question 3.<br \/><img class=\"alignnone size-full wp-image-65736\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q3.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q3.1\" width=\"289\" height=\"118\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65737\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q3.2.png\" sizes=\"(max-width: 383px) 100vw, 383px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q3.2.png 383w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q3.2-300x273.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q3.2\" width=\"383\" height=\"348\" \/><\/p>\n<p>Question 4.<br \/><img class=\"alignnone size-full wp-image-65738\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q4.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q4.1\" width=\"276\" height=\"113\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65739\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q4.2.png\" sizes=\"(max-width: 288px) 100vw, 288px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q4.2.png 288w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q4.2-233x300.png 233w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q4.2\" width=\"288\" height=\"371\" \/><br \/><img class=\"alignnone size-full wp-image-65740\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q4.3.png\" sizes=\"(max-width: 374px) 100vw, 374px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q4.3.png 374w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q4.3-300x136.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q4.3\" width=\"374\" height=\"170\" \/><\/p>\n<p>Question 5.<br \/><img class=\"alignnone size-full wp-image-65741\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q5.1.png\" sizes=\"(max-width: 317px) 100vw, 317px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q5.1.png 317w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q5.1-300x111.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q5.1\" width=\"317\" height=\"117\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65742\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q5.2.png\" sizes=\"(max-width: 375px) 100vw, 375px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q5.2.png 375w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q5.2-300x212.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q5.2\" width=\"375\" height=\"265\" \/><\/p>\n<p>Question 6.<br \/><img class=\"alignnone size-full wp-image-65743\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.1.png\" sizes=\"(max-width: 342px) 100vw, 342px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.1.png 342w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.1-300x106.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q6.1\" width=\"342\" height=\"121\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65744\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.2.png\" sizes=\"(max-width: 337px) 100vw, 337px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.2.png 337w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.2-261x300.png 261w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q6.2\" width=\"337\" height=\"387\" \/><br \/><img class=\"alignnone size-full wp-image-65745\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.3.png\" sizes=\"(max-width: 370px) 100vw, 370px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.3.png 370w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q6.3-300x92.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q6.3\" width=\"370\" height=\"114\" \/><\/p>\n<p>Question 7.<br \/><img class=\"alignnone size-full wp-image-65746\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q7.1.png\" sizes=\"(max-width: 307px) 100vw, 307px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q7.1.png 307w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q7.1-300x113.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q7.1\" width=\"307\" height=\"116\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65747\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q7.2.png\" sizes=\"(max-width: 370px) 100vw, 370px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q7.2.png 370w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q7.2-288x300.png 288w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q7.2\" width=\"370\" height=\"386\" \/><\/p>\n<p>Question 8.<br \/>If a + b + c = 9 and\u00a0 ab + bc + ca = 23, then a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0=<br \/>(a) 35<br \/>(b) 58<br \/>(c) 127<br \/>(d) none of these<br \/>Solution:<br \/>a + b + c = 9, ab + bc + ca = 23<br \/>Squaring,<br \/>(a + b+ c) = (9)<sup>2<br \/><\/sup>a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0+ 2 (ab + bc + ca) = 81<br \/>\u21d2 a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0+ 2 x 23 = 81<br \/>\u21d2\u00a0 a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>+ c<sup>2<\/sup>\u00a0+ 46 = 81<br \/>\u21d2\u00a0 a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>+ c<sup>2<\/sup>\u00a0= 81 \u2013 46 = 35\u00a0 \u00a0(a)<\/p>\n<p>Question 9.<br \/>(a \u2013 b)<sup>3<\/sup>\u00a0+ (b \u2013 c)<sup>3<\/sup>\u00a0+ (c \u2013 a)<sup>3<\/sup>\u00a0=<br \/>(a) (a + b + c) (a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0\u2013 ab \u2013 bc \u2013 ca)<br \/>(d) (a -b)(b- c) (c \u2013 a)<br \/>(c) 3(a \u2013 b) (b \u2013 c) (c \u2013 a)<br \/>(d) none of these<br \/>Solution:<br \/>(a \u2013 b)<sup>3<\/sup>\u00a0+ (b- c)<sup>3<\/sup>\u00a0+ (c- a)<sup>3<br \/><\/sup>\u2235 a \u2013 b + b \u2013 c + c \u2013 a =<em>\u00a00<br \/><\/em>\u2234 (a<em>\u00a0\u2013\u00a0<\/em>b)<sup>3<\/sup>\u00a0+ (b \u2013 c)<sup>3<\/sup><em>\u00a0+ (c \u2013 a)<sup>3<br \/><\/sup>= 3\u00a0<\/em>(a -b)(b- c) (c \u2013 a)\u00a0 \u00a0 \u00a0 \u00a0 (c)<\/p>\n<p>Question 10.<br \/><img class=\"alignnone size-full wp-image-65748\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q10.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q10.1\" width=\"289\" height=\"140\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65749\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q10.2.png\" sizes=\"(max-width: 377px) 100vw, 377px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q10.2.png 377w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q10.2-300x183.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q10.2\" width=\"377\" height=\"230\" \/><\/p>\n<p>Question 11.<br \/>If a \u2013 b = -8 and ab = -12 then a<sup>3<\/sup>\u00a0\u2013 b<sup>3<\/sup>\u00a0=<br \/>(a) -244<br \/>(b) -240<br \/>(c) -224<br \/>(d) -260<br \/>Solution:<br \/>a \u2013 b = -8, ab = -12<br \/>(a \u2013 b)<sup>3<\/sup>\u00a0= a<sup>3<\/sup>\u00a0\u2013 b<sup>3<\/sup>\u00a0\u2013 3ab (a \u2013 b)<br \/>(-8)<sup>3<\/sup>\u00a0= a<sup>3<\/sup>\u00a0\u2013 b<sup>3<\/sup>\u00a0\u2013 3 x (-12) (-8)<br \/>-512 = a<sup>3<\/sup>-b<sup>3<\/sup>\u2013 288<br \/>a<sup>3<\/sup>\u00a0\u2013 b<sup>3<\/sup>\u00a0= -512 + 288 = -224\u00a0 \u00a0 \u00a0\u00a0(c)<\/p>\n<p>Question 12.<br \/>If the volume of a cuboid is 3x<sup>2<\/sup>\u00a0\u2013 27, then its possible dimensions are<br \/>(a) 3, x<sup>2<\/sup>, -27x<br \/>(b) 3, x \u2013 3, x + 3<br \/>(c) 3, x<sup>2<\/sup>, 27x<br \/>(d) 3, 3, 3<br \/>Solution:<br \/>Volume = 3x<sup>2<\/sup>\u00a0-27 = 3(x<sup>2<\/sup>\u00a0\u2013 9)<br \/>= 3(x + 3) (x \u2013 3)<br \/>\u2234 Dimensions are\u00a0\u00a0 = 3, x \u2013 3, x\u00a0\u00a0 +\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (b)<\/p>\n<p>Question 13.<br \/>75 x 75 + 2 x 75 x 25\u00a0\u00a0\u00a0 + 25 x 25 is equal to<br \/>(a) 10000<br \/>(b) 6250<br \/>(c) 7500<br \/>(d) 3750<br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65750\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q13.1.png\" sizes=\"(max-width: 358px) 100vw, 358px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q13.1.png 358w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q13.1-300x127.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q13.1\" width=\"358\" height=\"152\" \/><\/p>\n<p>Question 14.<br \/>(x \u2013 y) (x + y)(x<sup>2<\/sup>\u00a0+ y<sup>2<\/sup>) (x<sup>4<\/sup>\u00a0+ y<sup>4<\/sup>) is equal to<br \/>(a) x<sup>16<\/sup>\u00a0\u2013 y<sup>16<\/sup><br \/>(b) x<sup>8<\/sup>\u00a0\u2013 y<sup>8<\/sup><br \/>(c) x<sup>8<\/sup>\u00a0+ y<sup>8<\/sup><br \/>(d) x<sup>16<\/sup>\u00a0+ y<sup>16<br \/><\/sup>Solution:<br \/><img class=\"alignnone size-full wp-image-65751\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q14.1.png\" sizes=\"(max-width: 355px) 100vw, 355px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q14.1.png 355w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q14.1-300x117.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q14.1\" width=\"355\" height=\"139\" \/><\/p>\n<p>Question 15.<br \/><img class=\"alignnone size-full wp-image-65752\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.1.png\" sizes=\"(max-width: 308px) 100vw, 308px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.1.png 308w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.1-300x122.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q15.1\" width=\"308\" height=\"125\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65753\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.2.png\" sizes=\"(max-width: 301px) 100vw, 301px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.2.png 301w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.2-203x300.png 203w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q15.2\" width=\"301\" height=\"444\" \/><br \/><img class=\"alignnone size-full wp-image-65754\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.3.png\" sizes=\"(max-width: 375px) 100vw, 375px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.3.png 375w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q15.3-300x54.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q15.3\" width=\"375\" height=\"68\" \/><\/p>\n<p>Question 16.<br \/><img class=\"alignnone size-full wp-image-65755\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.1.png\" sizes=\"(max-width: 336px) 100vw, 336px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.1.png 336w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.1-300x99.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q16.1\" width=\"336\" height=\"111\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65756\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.2.png\" sizes=\"(max-width: 342px) 100vw, 342px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.2.png 342w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.2-231x300.png 231w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q16.2\" width=\"342\" height=\"445\" \/><br \/><img class=\"alignnone size-full wp-image-65757\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.3.png\" sizes=\"(max-width: 381px) 100vw, 381px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.3.png 381w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.3-300x300.png 300w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.3-150x150.png 150w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q16.3-100x100.png 100w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q16.3\" width=\"381\" height=\"380\" \/><\/p>\n<p>Question 17.<br \/><img class=\"alignnone size-full wp-image-65758\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q17.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q17.1\" width=\"292\" height=\"184\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65759\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q17.2.png\" sizes=\"(max-width: 371px) 100vw, 371px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q17.2.png 371w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q17.2-300x280.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q17.2\" width=\"371\" height=\"346\" \/><\/p>\n<p>Question 18.<br \/><img class=\"alignnone size-full wp-image-65760\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.1.png\" sizes=\"(max-width: 320px) 100vw, 320px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.1.png 320w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.1-300x106.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q18.1\" width=\"320\" height=\"113\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65761\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.2.png\" sizes=\"(max-width: 344px) 100vw, 344px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.2.png 344w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.2-246x300.png 246w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q18.2\" width=\"344\" height=\"420\" \/><br \/><img class=\"alignnone size-full wp-image-65762\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.3.png\" sizes=\"(max-width: 403px) 100vw, 403px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.3.png 403w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q18.3-300x249.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q18.3\" width=\"403\" height=\"334\" \/><\/p>\n<p>Question 19.<br \/>If a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0\u2013 ab \u2013 bc \u2013 ca = 0, then<br \/>(a) a + b = c<br \/>(b) b + c = a<br \/>(c) c + a = b<br \/>(d) a = b = c<br \/>Solution:<br \/>a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0\u2013 ab \u2013 bc \u2013 ca = 0<br \/>2 {a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0\u2013 ab \u2013 be \u2013 ca) = 0 (Multiplying by 2)<br \/>\u21d2\u00a0 2a<sup>2<\/sup>\u00a0+ 2b<sup>2<\/sup>\u00a0+ 2c<sup>2<\/sup>\u2013 2ab \u2013 2bc \u2013 2ca = 0<br \/>\u21d2\u00a0 a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0\u2013 2ab + b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0\u2013 2bc + c<sup>2<\/sup>\u00a0+ a<sup>2<\/sup>\u00a0\u2013 2ca = 0<br \/>\u21d2\u00a0 (a \u2013 b)<sup>2<\/sup>\u00a0+ (b \u2013 c)<sup>2<\/sup>\u00a0+ (c \u2013 a)<sup>2<\/sup>\u00a0= 0<br \/>(a \u2013 b)<sup>2<\/sup>\u00a0= 0, then a \u2013 b = 0<br \/>\u21d2 a = b<br \/>Similarly, (b \u2013 c)<sup>2<\/sup>\u00a0= 0, then<br \/>b-c = 0<br \/>\u21d2 b = c<br \/>and (c \u2013 a)<sup>2<\/sup>\u00a0= 0, then c-a = 0<br \/>\u21d2 c = a<br \/>\u2234 a = b \u2013 c\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (d)<\/p>\n<p>Question 20.<br \/><img class=\"alignnone size-full wp-image-65763\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q20.1.png\" sizes=\"(max-width: 372px) 100vw, 372px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q20.1.png 372w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q20.1-300x92.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q20.1\" width=\"372\" height=\"114\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65764\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q20.2.png\" sizes=\"(max-width: 368px) 100vw, 368px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q20.2.png 368w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q20.2-300x225.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q20.2\" width=\"368\" height=\"276\" \/><\/p>\n<p>Question 21.<br \/><img class=\"alignnone size-full wp-image-65765\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q21.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q21.1\" width=\"251\" height=\"173\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65766\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q21.2.png\" sizes=\"(max-width: 378px) 100vw, 378px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q21.2.png 378w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q21.2-300x241.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q21.2\" width=\"378\" height=\"304\" \/><\/p>\n<p>Question 22.<br \/>If a + b + c = 9 and ab + bc + ca = 23, then a<sup>3<\/sup>\u00a0+ b<sup>3<\/sup>\u00a0+ c<sup>3<\/sup>\u00a0\u2013 3 abc =<br \/>(a) 108<br \/>(b) 207<br \/>(c) 669<br \/>(d) 729<br \/>Solution:<br \/>a<sup>3<\/sup>\u00a0+ b<sup>3<\/sup>\u00a0+ c<sup>3<\/sup>\u00a0\u2013 3abc<br \/>= (a + b + c) [a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0\u2013 (ab + bc + ca)<br \/>Now, a + b + c = 9<br \/>Squaring,<br \/>a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0+ 2 (ab + be + ca) = 81<br \/>\u21d2\u00a0 a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0+ 2 x 23 = 81<br \/>\u21d2\u00a0 a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0+ 46 = 81<br \/>\u21d2\u00a0 a<sup>2<\/sup>\u00a0+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>\u00a0= 81 \u2013 46 = 35<br \/>Now, a<sup>3<\/sup>\u00a0+ b<sup>3<\/sup>\u00a0+ c<sup>3<\/sup>\u00a0\u2013 3 abc = (a + b + c) [(a<sup>2\u00a0<\/sup>+ b<sup>2<\/sup>\u00a0+ c<sup>2<\/sup>) \u2013 (ab + bc + ca)<br \/>= 9[35 -23] = 9 x 12= 108\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (a)<\/p>\n<p>Question 23.<br \/><img class=\"alignnone size-full wp-image-65767\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q23.1.png\" sizes=\"(max-width: 344px) 100vw, 344px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q23.1.png 344w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q23.1-300x149.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q23.1\" width=\"344\" height=\"171\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65768\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q23.2.png\" sizes=\"(max-width: 377px) 100vw, 377px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q23.2.png 377w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q23.2-282x300.png 282w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q23.2\" width=\"377\" height=\"401\" \/><\/p>\n<p>Question 24.<br \/>The product (a + b) (a \u2013 b) (a<sup>2<\/sup>\u00a0\u2013 ab + b<sup>2<\/sup>) (a<sup>2<\/sup>\u00a0+ ab + b<sup>2<\/sup>) is equal to<br \/>(a) a<sup>6<\/sup>\u00a0+\u00a0\u00a0 b<sup>6<\/sup><br \/>(b) a<sup>6<\/sup>\u00a0\u2013 b<sup>6<br \/><\/sup>(c) a<sup>3<\/sup>\u00a0\u2013\u00a0b<sup>3<\/sup><br \/>(d) a<sup>3<\/sup>\u00a0+ b<sup>3<br \/><\/sup>Solution:<br \/>(a + b) (a \u2013 b) (a<sup>2<\/sup>\u00a0\u2013 ab + b<sup>2<\/sup>) (a<sup>2<\/sup>\u00a0+ ab +b<sup>2<\/sup>)<br \/>= (a + b) (a<sup>2<\/sup>-ab + b<sup>2<\/sup>) (a-b) (a<sup>2<\/sup>\u00a0+ ab + b<sup>2<\/sup>)<br \/>= (a<sup>3<\/sup>\u00a0+ b<sup>3<\/sup>) (a<sup>3<\/sup>\u00a0\u2013 b<sup>3<\/sup>)<br \/>= (a<sup>3<\/sup>)<sup>2<\/sup>\u00a0\u2013 (b<sup>3<\/sup>)<sup>2\u00a0<\/sup>= a<sup>6<\/sup>\u00a0\u2013 b<sup>6<\/sup>\u00a0\u00a0 (b)<\/p>\n<p>Question 25.<br \/>The product (x<sup>2<\/sup>\u00a0\u2013 1) (x<sup>4<\/sup>\u00a0+ x<sup>2<\/sup>\u00a0+ 1) is equal to<br \/>(a) x<sup>8<\/sup>\u00a0\u2013\u00a0\u00a0 1<br \/>(b) x<sup>8<\/sup>\u00a0+ 1<br \/>(c) x<sup>6<\/sup>\u00a0\u2013\u00a0\u00a0 1<br \/>(d) x<sup>6<\/sup>\u00a0+ 1<br \/>Solution:<br \/>(x<sup>2<\/sup>\u00a0\u2013 1) (x<sup>4<\/sup>\u00a0+ x<sup>2<\/sup>\u00a0+ 1)<br \/>= (x<sup>2<\/sup>)<sup>3<\/sup>\u00a0\u2013 (1)<sup>3<\/sup>\u00a0= x<sup>6<\/sup>\u00a0\u2013 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (c)<\/p>\n<p>Question 26.<br \/><img class=\"alignnone size-full wp-image-65769\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q26.1.png\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q26.1\" width=\"291\" height=\"138\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65770\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q26.2.png\" sizes=\"(max-width: 375px) 100vw, 375px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q26.2.png 375w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q26.2-300x131.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q26.2\" width=\"375\" height=\"164\" \/><\/p>\n<p>Question 27.<br \/><img class=\"alignnone size-full wp-image-65771\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q27.1.png\" sizes=\"(max-width: 386px) 100vw, 386px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q27.1.png 386w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q27.1-300x162.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q27.1\" width=\"386\" height=\"208\" \/><br \/>Solution:<br \/><img class=\"alignnone size-full wp-image-65772\" src=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q27.2.png\" sizes=\"(max-width: 372px) 100vw, 372px\" srcset=\"https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q27.2.png 372w, https:\/\/www.learninsta.com\/wp-content\/uploads\/2018\/06\/RD-Sharma-Class-9-Solutions-Chapter-4-Algebraic-Identities-MCQS-Q27.2-300x186.png 300w\" alt=\"RD Sharma Class 9 Solutions Chapter 4 Algebraic Identities MCQS Q27.2\" width=\"372\" height=\"231\" \/><\/p>\n<\/div>\n<p>This is the complete blog of RD Sharma Class 9 Solutions Chapter 4 MCQs. To know more about the <a href=\"https:\/\/www.cbse.gov.in\/\" target=\"_blank\" rel=\"noopener\">CBSE<\/a> Class 9 Maths exams, ask in the comments.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"faqs-on-rd-sharma-class-9-solutions-chapter-4-mcqs\"><\/span><strong>FAQs on RD Sharma Class 9 Solutions Chapter 4 MCQs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1631038314341\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"how-many-questions-are-there-in-rd-sharma-class-9-solutions-chapter-4-mcqs\"><\/span>How many questions are there in RD Sharma Class 9 Solutions Chapter 4 MCQs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>There are 27 questions in\u00a0RD Sharma Class 9 Solutions Chapter 4 MCQs.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1631038355378\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"from-where-can-i-download-the-pdf-of-rd-sharma-class-9-solutions-chapter-4-mcqs\"><\/span>From where can I download the PDF of RD Sharma Class 9 Solutions Chapter 4 MCQs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>You can find the download link from the above blog.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1631038382802\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"how-much-does-it-cost-to-download-the-pdf-of-rd-sharma-class-9-solutions-chapter-4-mcqs\"><\/span>How much does it cost to download the PDF of RD Sharma Class 9 Solutions Chapter 4 MCQs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>You can download it for free.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>RD Sharma Class 9 Solutions Chapter 4 MCQs: You can ace your next Class 9 Maths with the RD Sharma Solutions Class 9 Maths. Subject matter experts have designed easy-to-understand solutions just for you. To know more about the RD Sharma Class 9 Solutions Chapter 4 MCQs, read the whole blog.\u00a0 Access answers of RD &#8230; <a title=\"RD Sharma Class 9 Solutions Chapter 4 MCQS (Updated for 2024)\" class=\"read-more\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-9-solutions-chapter-4-mcqs\/\" aria-label=\"More on RD Sharma Class 9 Solutions Chapter 4 MCQS (Updated for 2024)\">Read more<\/a><\/p>\n","protected":false},"author":243,"featured_media":125222,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":""},"categories":[73411],"tags":[3086,4388],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/125215"}],"collection":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/users\/243"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/comments?post=125215"}],"version-history":[{"count":5,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/125215\/revisions"}],"predecessor-version":[{"id":499591,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/125215\/revisions\/499591"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media\/125222"}],"wp:attachment":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media?parent=125215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/categories?post=125215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/tags?post=125215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}