Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 8 - Section 8.5 - Radical Equations - Exercise Set - Page 607: 7



Work Step by Step

$\sqrt {x-3}-11=0$ Add 11 to both sides. $\sqrt{x-3}-11+11=0+11$ Simplify. $\sqrt{x-3}=11$ Square both sides. $(\sqrt {x-3})^2=11^2$ Simplify. $x-3=121$ Add 3 to each side. $x-3+3=121+3$ Simplify. $x=124$
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