Elementary Algebra

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

Chapter 9 - Roots and Radicals - 9.1 - Roots and Radicals - Concept Quiz 9.1 - Page 400: 3



Work Step by Step

By definition, if $\sqrt{b} = a$, a is the principle square root of b, given that a and b are both greater than or equal to zero. Thus, the positive square root of a number is the principle square root of that number.
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