Intermediate Algebra (6th Edition)

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

Chapter 5 - Section 5.1 - Exponents and Scientific Notation - Exercise Set: 21

Answer

-1

Work Step by Step

We are asked to evaluate the expression $-x^{0}$. In general, $a^{0}=1$ when a does not equal 0. Therefore, $-x^{0}=-(1)=-1$. Since the negative sign is not in parentheses with the base of the exponent, we evaluate it after evaluating the negative sign.
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