Answer
$=x^2$
Work Step by Step
Using the fact that $\sqrt{a}=a^\frac{1}{2}$ and that $(a^b)^n=a^{bn}$, the expression becomes $$\sqrt{x^4}=(x^4)^\frac{1}{2}=x^{4\cdot \frac{1}{2}}=x^2$$
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 4 - Exponential Functions - Exercises to Skills for Chapter 4 - Page 185: 34
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