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सोपे रूप द्या. (x + y)3 − (x − y)3 - Mathematics [गणित]

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Question

सोपे रूप द्या.

(x + y)− (x − y)3

Simplify

Solution

आपणांस माहीत आहे की,

a3 − b3 = (a − b)(a2 + ab + b2)

(x + y)− (x − y)3

(x + y)3 − (x − y)3 = {(x + y) − (x − y)}{(x + y)2 + (x + y)(x − y) + (x − y)2}

= 2y(x2 + 2xy + y2 + x2 − y2 + x2 − 2xy + y2)

= 2y (3x2 + y2)

= 2y × 3x2 + 2y × y2

= 6x2y + 2y3

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Chapter 3.1: बैजिक राशींचे अवयव - सरावसंच 6.3 [Page 55]

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Balbharati Integrated 8 Standard Part 2 [Marathi Medium] Maharashtra State Board
Chapter 3.1 बैजिक राशींचे अवयव
सरावसंच 6.3 | Q 2. (1) | Page 55
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