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16 October, 08:39

Which of the following is a root of the polynomial shown below f (x) = x^3+2x^2-x-2

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  1. 16 October, 08:47
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    F (x) = x^3 + 2x^2 - x - 2

    f (x) = x^2 (x + 2) - (x + 2)

    f (x) = (x^2 - 1) (x + 2)

    f (x) = (x + 1) (x - 1) (x + 2)

    Roots: - 1, 1, - 2
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