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intermediate algebra

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Rewrite with positive exponents.Assume that even roots are nonnegative quanities and all denominators are nonzero...(4xy^-2)^-2

  • intermediate algebra -

    4^-2 = 1/4^2 = 1/16
    x^-2 = 1/x^2
    (y^-2)^-2 = (1/y^2)^-2= = y^4
    so
    y^4/(16 x^2)

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