Answer
$-2x\sqrt[3]{x}$
Work Step by Step
We use $\sqrt[3] {a^3}=a$ to obtain:
$\sqrt[3]{-8x^4}=\sqrt[3]{(-2)^{3}x^{3}x}=-2x\sqrt[3]{x}$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter R - Section R.8 - nth Roots; Rational Exponents - R.8 Assess Your Understanding - Page 78: 17
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