Question

Plzz solve this.........factorise 9(x+a)^2-4x^2

Answer 1

Hi friend
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Your answer
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★ FACTORISATION
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$using \: identity \: = > a {}^{2} - b {}^{2} = (a + b)(a - b) \\ \\ 9(x + a) {}^{2} - 4x {}^{2} \\ \\ = > (3(x + a)) {}^{2} - (2x) {}^{2} \\ \\ = > (3(x + a) + 2x)((3(x + a) - 2x) \\ \\ = > (3x + 3a + 2x)(3x + 3a - 2x) \\ \\ = > (5x + 3 a)(x + 3a)$
HOPE IT HELPS

Answer 2

9(x+a)^2-4x^2
[3(x+a)]^2-(2x)^2
(3x+3a)^2-(2x)^2
(3x+3a+2x) (3x+3a-2x)