Answer
$$2\left(2x+h\right)$$
Work Step by Step
Simplifying the expression using the rules of Algebra, we find:
$$\frac{2\left(x+h\right)^2-2x^2}{h} \\ \frac{2h\left(2x+h\right)}{h} \\ 2\left(2x+h\right)$$
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 1 - Linear Functions and Change - 1.2 Rate of Change - Exercises and Problems for Section 1.2 - Skill Refresher - Page 14: S10
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