Question 1123069
(3x^4/2y^-3)^-3

Simplify using positive exponents only.
(3x^4/2y^-3)^-3
The order of the steps does not matter.
(3x^4/2y^-3)^-3
Multiply exponents by the -3
= (27x^-12)/8y^9
Multiply NUM and DEN by x^12
= {{{27/8x^12y^9}}}
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If you prefer:
= {{{(3/(2x^4y^3))^3}}}