Question 111969
(15x^-2y)^2/(5x^-5y^3)
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= [(15(x^-2)y]^2/[(5x^-5)(y^3)]
=[15/5][x^-2/x^-5][y^2/y^3]


= 3[x^3][1/y]

=[3x^3]/[y]

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Cheers,
Stan H.