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Today, 02:16

Find the solution set x^2-7x-8=0 separate the two values with a comma

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  1. Today, 04:29
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    A=1 b=-7 c=-8

    Using the quadratic formula:

    x = - - 7 + - sq root (49 - 4*1*-8) / 2*1

    x = 7 + - sq root (49 + 32) / 2

    x1 = (7 + 9) / 2 = 8

    x2 = (7 - 9) / 2 = - 1

    answers (8,-1)
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