College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.8 - nth Roots; Rational Exponents - R.8 Assess Your Understanding - Page 78: 7


(c) is the best definition

Work Step by Step

The statement (c): "Radical expressions that have the same index and the same radicand" is the best definition of like radicals, because both the radical and the radicand (e.g. both $n$ and $a$ in $\sqrt[n]{a}$) need to be the same for the overall value to be equivalent.
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