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Write the quadratic equation in standard form. What is the value of b 2 - 4ac?

1 = 2x 2 + 7x

+5
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  1. 5 May, 20:48
    0
    B^2 - 4ac > 0

    2x^2 + 7x - 1 = 0

    b = 7 a=2 c = - 1

    b^2 - 4ac = 7^2 - 4*2 * (-1)

    = 49 + 8

    = 57
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