Write with Rational (Fractional) Exponents eighth root of u^7

$\sqrt[8]{u^{7}}$

Step 1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[8]{u^{7}}$ as $u^{\frac{7}{8}}$ .

$u^{\frac{7}{8}}$

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