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Factor of x squared+4x-45

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  1. 23 May, 05:59
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    X^2 + 4x - 45

    -45 = 9 * (-5)

    4 = 9 + (-5)

    so

    x^2 + 4x - 45 = (x + 9) (x - 5)

    answer

    (x + 9) (x - 5)
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