Homework Help: intermediate algebra

Posted by Lueshelle on Tuesday, April 24, 2012 at 8:56am.

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

intermediate algebra - Damon, Tuesday, April 24, 2012 at 10:15am
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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