Answer
$\frac{1}{n+2}$
Work Step by Step
Given : $\frac{n}{n^{2}+4n+4} + \frac{2}{n^{2}+4n+4}$
This becomes : $\frac{n+2}{n^{2}+4n+4}$
$=\frac{n+2}{(n+2)(n+2)}$
$=\frac{1}{n+2}$
(After dividing out the common factor (n+2))
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 11 - Rational Expressions and Functions - 11-4 Adding and Subtracting Rational Expressions - Practice and Problem-Solving Exercises - Page 687: 13
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