Answer
$x^3y^2$
Work Step by Step
Use the rule $\sqrt[n]{a^n}=n, a\gt0$ to obtain
$$
\sqrt[4]{x^{12}y^8}=\sqrt[4]{(x^3y^2)^4}=x^3y^2
$$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.7 nth Roots; Rational Exponents - A.7 Assess Your Understanding - Page A60: 15
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