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Simplify this expression: 11 + (x^3 - 8 / x^2 + 2x + 4) - x

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  1. as written, I get

    x^3 - 8/x^2 + 2x + 4

    If you mean

    11 + (x^3 - 8) / (x^2 + 2x + 4) - x
    then that's just
    11 + x-2 - x
    9

    recall the factorization of the difference of cubes.

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    posted by Steve

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