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 - Page 490: 81


The answer is below.

Work Step by Step

This mathematical expression is asking: what number, when multiplied by itself four times, equals $-2$? However, whenever a number is multiplied by itself an even number of times, it is positive. Therefore, there is no number for which this is the case, meaning that there is no real solution.
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