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30 August, 16:34

What is x2+2x-8=0 by factoring?

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  1. 30 August, 17:51
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    (x+4) (x-2)

    Step-by-step explanation:

    We need to find two numbers that multiply to - 8 and add up to 2. These are 4,-2.

    Rewrite the polynomial:

    x^2-2x+4x-8

    and factor each pair:

    x (x-2) + 4 (x-2) = (x+4) (x-2)
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