Answer
$$\frac{x^{\frac{7}{2}}}{y^{\frac{4}{3}}}$$
Work Step by Step
Using the rules of exponents, we find:
$$\left(\frac{x^{\frac{7}{4}}}{y^{\frac{2}{3}}}\right)^2 \\ \frac{x^{\frac{7}{2}}}{y^{\frac{4}{3}}}$$
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