Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.6 - Other Types of Equations - 1.6 Exercises - Page 128: 33



Work Step by Step

$\sqrt {x+8}-5=0$ $\sqrt {x+8}=5~~$ (Square both sides) $(\sqrt {x+8})^2=5^2$ $x+8=25$ $x=25-8=17$ Check the solution: $\sqrt {17+8}-5=\sqrt {25}-5=5-5=0$
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