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Maharashtra State BoardSSC (English Medium) 8th Standard
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Factorise. 2l3 + 432m3 - Marathi (Second Language) [मराठी (द्वितीय भाषा)]

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Question

Factorise.

2l3 + 432m3

Sum

Solution

2l3 + 432m3

2 (l3 + 216 m3)

2 (l3 + (6m)3)

a3 + b3 = (a + b) (a2 − ab + b2)

= 2 (l + 6m) (l2 − l × 6m + (6m)2)

= 2 (l + 6m) (l2 − 6lm + 36m2)

shaalaa.com
Factorisation using Identity a3 + b3 = (a + b)(a2 - ab + b2)
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Q 4
Chapter 6: Factorisation of Algebraic expressions - Practice Set 6.2 [Page 31]

APPEARS IN

Balbharati Mathematics [English] 8 Standard Maharashtra State Board
Chapter 6 Factorisation of Algebraic expressions
Practice Set 6.2 | Q 4 | Page 31
Balbharati Integrated 8 Standard Part 2 [English Medium] Maharashtra State Board
Chapter 3.1 Factorisation of Algebraic expressions
Practice Set 6.2 | Q 1. (4) | Page 46

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