Question

factorize
4a^2-12a+9-49b^2

Answer 1

hey folk!!!!

(4a2-12a+9) - 49b2 . factorize
[(2a)2-2(2a)(3)+(3)2] - (7b)2
    = [2a-3]2-[7b]2
    =[2a-3+7b] [2a-3-7b]

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Answer 2

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