Question

factorise
$(8x + 3)^2 - (8x - 3)^2$
please help me to solve this questions ​

Answer 1

AnsweR is 96x

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Step by step explanation:-

☞(8x + 3)²- (8x - 3)²

By using two identities in equation we expand it.

Identities are :-

✫(a + b)² = (a)² + (b)² + 2 × a × b

✫(a - b)² = (a)² + (b)² - 2 × a × b

So,

➞(8x)² + (3)² + 2 × 8x × 3 - (8x)² - (3)² + 2 × 8x × 3

➞ 64x² + 9 + 48x - 64x² - 9 + 48 x

➞ 48x + 48x

➞ 96x

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More identities:-

❊ (a +b)³ = (a)³+(b)³× 3 ab ( a+ b)

❊ a² - b² = (a+ b ) ( a - b)

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