Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Review: 55

Answer

-26.246

Work Step by Step

$-78^{\frac{3}{4}}=-(\sqrt[4] (78^{3})=-26.246$ This makes sense that $-(\sqrt[4] (78^{3}))=-(26.246)=-26.246$, as $-(\sqrt[4] (81^{3}))=-(27)=-27$. In this case, we are finding the opposite of $\sqrt[4] (78^{3})$.
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