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 79: 51

Answer

$\displaystyle \frac{-\sqrt{15}}{5}$

Work Step by Step

We rationalize the denominator: $\displaystyle \frac{-\sqrt{3}}{\sqrt{5}}=\frac{-\sqrt{3}\sqrt{5}}{\sqrt{5}\sqrt{5}}=\frac{-\sqrt{15}}{5}$
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