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 - Problem Set 9.1: 59

Answer

$21\sqrt{2}$

Work Step by Step

Using $a(b+c)=ab+ac$ or the Distributive Property, the given expression, $ 7\sqrt{2}+14\sqrt{2} ,$ simplifies to \begin{array}{l}\require{cancel} (7+14)\sqrt{2} \\\\= 21\sqrt{2} .\end{array}
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