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15 December, 19:47

Solve the quadratic equation x2 + 16x = - 64 by factoring.

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  1. 15 December, 23:15
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    Add 64 to both sides

    x^2+16x+64=0

    what 2 numbers multily to get 64 and add to get 16?

    8 and 8

    (x+8) (x+8) = 0

    set to zero

    x+8=0

    x=-8
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