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24 October, 10:33

Solve x2 + 14x = - 24 by completing the square. What is the solution set of the equation?

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  1. 24 October, 12:20
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    X^2 + 14x = - 24

    x^2 + 14x + 24 = 0

    x^2 + 12x + 2x + 24 = 0

    x (x + 12) + 2 (x + 12) = 0

    (x + 12) (x + 2) = 0

    x + 12 = 0 x + 2 = 0

    x = - 12 x = - 2
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