Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - 7-1 Zero and Negative Exponents - Practice and Problem-Solving Exercises - Page 421: 11



Work Step by Step

$(-5)^{-2}$ = $\frac{1}{(-5)^{2}}$ = $\frac{1}{25}$ Whenever there is a negative exponent, we should place the term under a 1 to make the exponent positive. Then we evaluate the expression. In this instance, the answer is $\frac{1}{25}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.