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11 January, 12:31

Quadtric equation x 2 + 3x = 10

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  1. 11 January, 12:37
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    X^2 + 3x - 10 = 0

    a=1 b=3 c = - 10

    Solving by the quadratic formula:

    x = - 3 + - sq root (3*3 - 4*1*-10) / 2*1

    x = - 3 + - sq root (9 + 40) / 2

    x1 = (-3 + 7) / 2 = 2

    x2 = (-3 - 7) / 2 = - 5
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