Factorise the following using the identity a^2-b^2=(a+b)(a-b) 4 x… - Vidyadip

Question

Factorise the following using the identity $a^2-b^2=(a+b)(a-b)$
$ 4 x^2-49 y^2$

✓

Answer

$4x^2- 49y^2$
$(2x)^2- (7y)^2$
$= (2x - 7)(2x + 7y)$

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