Simplify: \acx−2y3x3y−1\ac{x^{-2} y^3}{x^3 y^{-1}}\acx−2y3x3y−1 for x,y≠0x, y \neq 0x,y=0.
\acy4x5\ac{y^4}{x^5}\acy4x5
\acy2x\ac{y^2}{x}\acy2x
x5y4x^5 y^4x5y4
\ac1xy\ac{1}{x y}\ac1xy