Answer
$\frac{-4y^{5}}{x^{6}}$
Work Step by Step
$\frac{-4x^{-4}y^{2}}{x^{2}y^{-3}}$
$-4\times\frac{1}{x^{2+4}}\times y^{2+3}$
$-4\times\frac{1}{x^{6}}\times y^{5}$
$\frac{-4y^{5}}{x^{6}}$
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