Evaluate
\frac{-320x^{5}-240x^{4}+288x^{3}-216x^{2}y^{3}+216x^{2}-486xy^{2}-405xy+243y^{3}+396y^{2}x^{3}+96yx^{4}-288yx^{3}}{36\left(27y-24yx^{2}+18x-20x^{3}\right)}
Expand
\frac{320x^{5}+240x^{4}-288x^{3}+216x^{2}y^{3}-216x^{2}+486xy^{2}+405xy-243y^{3}-396y^{2}x^{3}-96yx^{4}+288yx^{3}}{36\left(20x^{3}-18x+24yx^{2}-27y\right)}
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