Simplify: (\acx2y3)−2(\ac{x^2}{y^3})^{-2}(\acx2y3)−2.
\acy6x4\ac{y^6}{x^4}\acy6x4
\acx4y6\ac{x^4}{y^6}\acx4y6
\acy5x4\ac{y^5}{x^4}\acy5x4
x4y6x^4 y^6x4y6