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16 November, 17:00

Is h (x) a factor of f (x) = x^3-3x^2x-4x-12

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  1. 16 November, 17:46
    0
    Solve by Grouping

    (x^3-3x^2) (-4x-12)

    x^2 (x-3) - 4 (x-3)

    (x^2-4) (x-3)

    = (x+2) (x-2) (x-3)
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