Factorise :

$4 x^{2} - 9 y^{2}$

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Solution

$4 x^{2} - 9 y^{2} = (2 x)^{2} - (3 y)^{2} = (2 x + 3 y) (2 x 3 y) {∵ a^{2} - b^{2} = (a + b) (a - b)}$

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Similar questions

4 x^{2} - 9 y^{2}

4 x^{2} + 12 x y + 9 y^{2}

4 x^{2} - 9 y^{2} - 2 x - 3 y

Factorise:
$(\frac{25}{4} x^{2} - \frac{1}{9} y^{2})$

Factorise: $4 x^{2} + 9 y^{2} + 16 z^{2} + 12 x y - 24 y z - 16 x z .$

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