Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - 11.3 - Fractional Exponents - Problem Set 11.3: 4

Answer

-11

Work Step by Step

Recall, when a number is raised to the second power, the square root cancels out the exponent. Thus, we obtain: $-\sqrt{121}=-\sqrt{11^{2}}=-11$
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