Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Review Exercises - Page 143: 47

Answer

$20\sqrt 5$

Work Step by Step

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