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18 August, 20:08

Solve 3x2 + 5x = 2 in next five mins!

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  1. 18 August, 20:36
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    3x2 + 5x - 2 = 0

    x1/2 = - 5 + - the root of (25-4*3 * (-2)) / 6

    x1/2 = - 5 + - the root of (25 + 24) / 6

    x1/2 = - 5 + - the root of 49/6

    x1/2 = - 5 + - 7/6

    x1 = - 5+7/6

    x1 = 2/6

    x1 = 1/3

    x2=-5-7/6

    x2=-12/6

    x2=-2
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