Answer
2x+h-1
Work Step by Step
$\frac{f(x+h)-f(x)}{h}$
$\frac{(x+h)^2-(x+h)-4-(x^2-x-4)}{h}$
$\frac{x^2+2xh+h^2-x-h-4-x^2+x+4}{h}$
$\frac{2xh+h^2-h}{h}$
$\frac{h(2x+h-1)}{h}$
=2x+h-1
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 2 - Summary, Review, and Test - Test - Page 327: 17
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