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29 October, 19:27

What is the value of b2 - 4ac for the following equation? 2x 2 - 2x - 1 = 0

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  1. 29 October, 19:56
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    For you to make an equation a quadratic equation, you need everything to be on one side, so you add one to both sides.

    2x^2 + 3x + 0=0

    a=2, b=3, c=0

    b^2-4ac (In the next step just plug in your variables)

    3^2 - 4 (2) (0)

    9 - 8 (0)

    9 - 0

    Your answer=9
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