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7 February, 06:22

If x=3 is a solution of the equation x^2+kx+15=0, find the value of k. Hence find the other solution of the equation

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  1. 7 February, 07:04
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    X^2 + kx + 15 = 0

    3^2 + 3k + 15 = 0

    9 + 3k + 15 = 0

    24 + 3k = 0

    3k = - 24

    k = - 24 / 3

    k = - 8
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