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

Question

Factorise the following using the identity $a^2- b^2= (a + b)(a - b).$
$4x^2- 25y^2$

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Answer

$4x^2- 25y^2$
$(2x)^2- (5y)^2$
$= (2x - 5y)(2x + 5)$

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