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Simplify: x^3/2 + 2x^1/2 - 8x^-1/2?

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my brain won't work today, please help.

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  1. Do you mean x^(3/2) + 2x^(1/2) - 8x^(-1/2)?

    Also, do you mean "factor" instead of "simplify"?

    You can factor out the lowest power of x.

    = x^(-1/2) (x^2 +2x -8)

    = x^(-1/2) (x-2)(x+4)

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