Factorise the following using the identity a^2- b^2= (a + b)(a - … - Vidyadip

Question

Factorise the following using the identity $a^2- b^2= (a + b)(a - b).$
$49x^2- 36y^2$

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Answer

$49x^2- 36y^2$
$= (7x)^2- (6y)^2$
$= (7x - 6y)(7x + 6y)$

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