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30 November, 21:05

Factor completely 64x2 - 49

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  1. 30 November, 22:11
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    The theorem is: a^2 - b^2 = (a+b) (a-b)

    So, let's do this:

    64x^2 - 49=

    (8x) ^2 - (7) ^2=

    (8x+7) (8x-7)
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