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8 March, 11:24

Solve. x^2 + 3x - 7=0. Enter your answers, as exact values, in the boxes. X = or x=.

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  1. 8 March, 11:49
    0
    Use the quadratic formula

    x = [-b + - sqr root (b^2 - 4*a*c) ] / 2a

    x = [-3 + - sqr root (9 - 4*1*-7) ] / 2

    x = (-3 + - sqr root (37) / 2

    x1 = 1.5414

    x2 = - 4.5414
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