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19 March, 20:32

Solve x2 9x 20 = 0. x = 2, x = 10 x = - 2, x = - 10 x = - 5, x = - 4 x = 5, x = 4

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  1. 20 March, 00:06
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    X^2 + 9x + 20 = 0

    (x + 4) (x + 5) = 0

    x + 4 = 0 or x + 5 = 0

    x = - 4 or x = - 5

    x = - 5, x = - 4
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