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posted by Katrina on Tuesday, December 20, 2011 at 7:11pm.
Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero. (2x^2y-^1)^-6
(2x^2y-^1)^-6 1/(2x^2y-^1)^6 1/(2^6 x^12 y^-6) y^6 / 64x^12
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