Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 10 - Exponents and Radicals - 10.3 Multiplying Radical Expressions - 10.3 Exercise Set: 29

Answer

$3\sqrt{5}$

Work Step by Step

Using the properties of radicals, the given expression, $ \sqrt{45} ,$ simplifies to \begin{array}{l}\require{cancel} \sqrt{9\cdot5} \\\\= \sqrt{(3)^2\cdot5} \\\\= 3\sqrt{5} .\end{array}
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