Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 7 - Rational Functions - 7.4 Adding and Subtracting Rational Expressions - 7.4 Exercises: 21

Answer

$\color{blue}{\dfrac{2x+10}{x+7}}$

Work Step by Step

The rational expressions have the same denominator so they are similar. Add the numerators and copy the denominator to obtain: $=\dfrac{x+2+x+8}{x+7} \\=\color{blue}{\dfrac{2x+10}{x+7}}$
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