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12 August, 00:29

What quadratic has roots of x=8 and x = - 5

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  1. 12 August, 00:45
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    The quadratic is f (x) = x² - 3x - 40

    Step-by-step explanation:

    If the roots are x=8 and x = - 5, the factors are (x - 8) and (x + 5).

    The quadratic is then:

    f (x) = x² + 5x - 8x - 40, or x² - 3x - 40

    The quadratic is f (x) = x² - 3x - 40
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