Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 6 - Section 6.2 - Adding and Subtracting Rational Expressions - 6.2 Exercises: 14

Answer

$-\frac{3}{y^{4}}$

Work Step by Step

$\frac{6}{5y^{4}}-\frac{21}{5y^{4}}=\frac{6-21}{5y^{4}}=\frac{-15}{5y^{4}}=\frac{-15\div5}{5y^{4}\div5}=-\frac{3}{y^{4}}$
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