Answer
$\frac{-4}{n+1}$
Work Step by Step
We first create common denominators to obtain:
$ \frac{4}{n(n+1)} -\frac{4(n+1)}{n(n+1)}$
We now use the distributive property to find:
$\frac{-4n}{n(n+1)} \\ \frac{-4}{(n+1)}$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 7 - Algebraic Fractions - 7.4 - Addition and Subtraction of Algebraic Fractions and Simplifying Complex Fractions - Problem Set 7.4 - Page 299: 7
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