Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.11 - Solving Equations and Inequalities Graphically - 1.11 Exercises - Page 121: 26

Answer

$x=4$

Work Step by Step

Given equation- $\sqrt {5-x} +1$ = $x-2$ i.e. $\sqrt {5-x} -x+3$ = $0$ We are asked to find all real solutions of this equation. Graphing $\sqrt {5-x} -x+3$, using graphing calculator- We get one x−intercept, i.e. $x=4$ Therefore $x=4$
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