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20 June, 23:16

2k^2 + 9k = - 7 using quadratic equation

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  1. 20 June, 23:43
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    Answer: (k+1) (2K+7)

    Step-by-step explanation:

    Using the quadratic formula

    X=-b±-√b^2-4ac/2a

    ax^2+bx+c=0

    2k^2+9k+7=0

    In this case a=2, b=9, c=7

    -9+-√9^2-4 (2) (7) / 2 (2)

    (-9+√25) / 4=-9+5/4=-1

    (-9-√25) / 4=-14/4 = -7/2

    X=-1, X=-7/2

    So (K+1) (k+7/2)

    So (k+1) (2k+7)
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