Answer
See below.
Work Step by Step
Let $\sqrt x=z$.
Then the equation is: $2z^2-5z+2=0\\(2z-1)(z-2)=0$
Thus $z=2$ or $z=0.5$.
If $2=\sqrt{x}$, then $x=2^2=4$.
If $0.5=\sqrt{x}$, then $x=0.5^2=0.25$.
Thus $x=4$ or $x=0.25$.
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 6 - Section 6.1 - Composite Functions - 6.1 Assess Your Understanding - Page 410: 75
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