Answer
$\frac{-1}{2x(x+h)}$
Work Step by Step
$\frac{\frac{1}{2(x+h)}-\frac{1}{2x}}{h}=\frac{x-(x+h)}{2hx(x+h)}=\frac{-h}{2hx(x+h)}=$$\frac{-1}{2x(x+h)}$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Prerequisites - Review Exercises - Page 64: 103
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