factorize:-
9(x+a)^2-4x^2
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9(X + a) ^2 - 4x^2
(3(X + a)^2 - (2x)^2
(3x + a - 2x)(3x + a +2x)
(x - a)(5x + a)
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Answer:
9(x+a)^2 -4x^2
(9x+9a)^2 -4x^2
(9x+9a)^2 -(2x)^2
(9x+9a+2x) (9x+9a-2x)
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