Posted by ladybug Please Help!! on .
Rewrite with positive exponents assume that even roots are nonegative quantitives and that all demoninators are nonzeros.
(6xy/y)3

Intermediate Algebra 
Reiny,
Assuming you meant to type
(6xy/y)^3
= (6x)^3
= (1/6x)^3
= 1/(216x^3)