johnny678 johnny678

09-08-2017
Mathematics

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Factor completely 169x2 − 64

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apologiabiology apologiabiology

09-08-2017

recognize the differnce of 2 perfect sqares
recall that a²-b²=(a-b)(a+b)
so

169x²-64=
(13x)²-(8)²=
(13x-8)(13x+8)

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