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27 May, 09:03

Using the zero product property to find the solutions to the equation x^2 + x-30 = 12

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  1. 27 May, 12:00
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    First, factor x^2+x-42:

    (x^2-6x) + (7x-42)

    x (x-6) + 7 (x-6)

    (x+7) (x-6) = 0

    solve using zero product property:

    x+7=0

    x=-7

    x-6=0

    x=6

    final solutions to the equation:

    x=6; x=-7
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