Answer
x=4
Work Step by Step
$\sqrt (5-x)$+1=x-2;
$\sqrt (5-x)$=x-3;
Square both sides;
5-x=$(x-3)^2$;
$x^2$-5x+4=0;
(x-4)(x-1)=0;
x=4 and x=1;
The solution is only x=4.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.5 - Equations - 1.5 Exercises - Page 57: 98
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