Answer
$-\frac{2}{x+4}$
Work Step by Step
By inspection, we see that there is a common denominator of $(x+4)$. Therefore, we obtain:
$\frac{8}{x+4}-\frac{10}{x+4}$
=$\frac{8-(10)}{x+4}$
=$\frac{8-10}{x+4}$
=$\frac{-2}{x+4}$
=$-\frac{2}{x+4}$
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 - 7.3 - Adding and Subtracting Algebraic Fractions - Problem Set 7.3 - Page 291: 12
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