Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 10 - Radical Expressions and Equations - 10-3 Operations With Radical Expressions - Practice and Problem-Solving Exercises - Page 631: 70


$\frac{2\sqrt 2}{3c}$

Work Step by Step

$\frac{4}{\sqrt 18c^2}$ $=\frac{4}{\sqrt 2.\sqrt 9c^2}$ $=\frac{4}{3c\sqrt 2}$ $=\frac{4\sqrt 2}{6c}$ $=\frac{2\sqrt 2}{3c}$
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