Answer
$ \frac{-1}{x(x+h)}$
Work Step by Step
$\frac{1}{h}(\frac{1}{x+h}-\frac{1}{x})=\frac{1}{h}(\frac{x-(x+h)}{x(x+h)})=\frac{-1}{x(x+h)}$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.6 Rational Expressions - A.6 Assess Your Understanding - Page A54: 71
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