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    Question

    The roots of the equations x2 + 16x + 63 =

    0
    A -9, -6 Correct Answer Incorrect Answer
    B -7, -8 Correct Answer Incorrect Answer
    C -9, -7 Correct Answer Incorrect Answer
    D 9, -8 Correct Answer Incorrect Answer

    Solution

    => x2 + 9x + 7x + 63 = 0 => x(x + 9) + 7(x + 9) = 0 => (x + 9) (x +7) = 0 => x = -9, -7

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