College Algebra (6th Edition)

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

Chapter 1 - Equations and Inequalities - Exercise Set 1.5: 178

Answer

$x+5+2\sqrt (x+4)$

Work Step by Step

$(\sqrt (x+4)+1)^{2}$ Using $(A+B)^{2}=A^{2}+2AB+B^{2}$ $(\sqrt (x+4)+1)^{2}=(\sqrt (x+4))^{2}+2(\sqrt (x+4))(1)+1^{2}$ $=x+4+2\sqrt (x+4)+1$ Combine numeric terms. $=x+5+2\sqrt (x+4)$
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