College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Summary, Review, and Test - Review Exercises - Page 90: 47

Answer

$20\sqrt 5$

Work Step by Step

$7\sqrt 5+13\sqrt 5=(7+13)\sqrt 5=(20)\sqrt 5=20\sqrt 5$
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