Intermediate Algebra (6th Edition)

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

Chapter 7 - Section 7.2 - Rational Exponents - Exercise Set: 14



Work Step by Step

$-64^{\frac{1}{2}}=-(\sqrt 64)=-(8)=-8$ Since the negative sign is not in parentheses with the 64, we only apply the exponent to the 64. In this case, we are taking the opposite of $\sqrt 64$.
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