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10 January, 16:17

Solve x2 6x - 6 = 10 for x

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  1. 10 January, 16:30
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    X^2+6x-6=10

    minus 10 from both sides

    x^2+6x-16=0

    factor

    what 2 numbers mulitply to get - 16 and add to get 6?

    8 and - 2

    (x+8) (x-2) = 0

    set each to zero

    x+8=0

    x=-8

    x-2=0

    x=2

    x=2 and/or - 8
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