Elementary Algebra

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: 8

Answer

$-\frac{2}{x^{2}}$

Work Step by Step

By inspection, we see that there is a common denominator of $5x^{2}$. Therefore, we obtain: $\frac{12}{5x^{2}}-\frac{22}{5x^{2}}$ $=\frac{12-22}{5x^{2}}$ $=\frac{-10}{5x^{2}}$ $=\frac{-2}{x^{2}}$ $=-\frac{2}{x^{2}}$
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