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14 August, 06:39

How do I factor y^2-16

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  1. 14 August, 07:00
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    This is a difference of 2 perfect square so if we have

    a^2+b^2 = (a-b) (a+b)

    16=4^2

    y^2-4^2 = (y-4) (y+4)
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