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4 June, 01:27

The Quadratic Formula gives which roots for the equation 2x2 + x - 6 = 0?

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  1. 4 June, 05:16
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    x1 = 2, x2=-3.

    Step-by-step explanation:

    x^2 + x-6=0

    a=1, b=1, c=-6

    x1 = (-b+sqrt (b^2-4ac)) / 2a

    x1 = (-1+sqrt (1^2-4*1 * (-6)) / 2*1

    x1 = (-1+sqrt (1+24)) / 2

    x1 = (-1+sqrt (25)) / 2

    x1 = (-1+5) / 2

    x1=4/2

    x1 = 2

    x2 = (-b-sqrt (b^2-4ac)) / 2a

    x2 = (-1-5) / 2

    x2 = -6/2

    x2=-3
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