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![\bf \sqrt[5]{128a^8}b^{10}\implies b^{10}\sqrt[5]{128a^8}~~ \begin{cases} 128=2\cdot 2\cdot 2\cdot 2\cdot 2\cdot 2\cdot 2\\ \qquad 2^7\\ \qquad 2^{2+5}\\ \qquad 2^2 \cdot 2^5\\ a^8=a^{3+5}\\ \qquad a^3\cdot a^5 \end{cases} \\\\\\ b^{10}\sqrt[5]{2^2\cdot 2^5\cdot a^3\cdot a^5}\implies b^{10}(2)(a)\sqrt[5]{2^2a^3}\implies 2ab^{10}\sqrt[5]{4a^3}](/tpl/images/0144/1184/653e8.png)
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Rotational exponents simplify [tex] \sqrt[5]{128 {a}^{8} } {b}^{10} [/tex]...
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