Posted by Katrina on .
Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.
(2x^2y^1)^6

algebra 
Steve,
(2x^2y^1)^6
1/(2x^2y^1)^6
1/(2^6 x^12 y^6)
y^6 / 64x^12