intermediate algebra
posted by TB .
rewrite with positive exponents. assume that even roots are of nonnegative quantities and thst all denominators are nonzero.
1 )3

xy^3 )3
everything times the negative power of 3 help please

intermediate algebra 
Steve
(xy^3)^3 = x^3 * (y^3)^3 = x^3 * y^9 = 1/x^3 * 1/y^9 = 1/(x^3 y^9)
or, doing it the other way,
(xy^3)^3 = 1/(xy^3)^3 = 1/(x^3 y^9)
Not sure what the initial 1)3 is all about, but what I posted above should get you going.
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