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 - 7.3 Multiplying and Dividing Rational Expressions - 7.3 Exercises: 27

Answer

$= \frac{5(x+7)}{3(x-4)}$

Work Step by Step

$\frac{5x+20}{x-4} \div \frac{3x+12}{x+7}$ $= \frac{5(x+4)}{x-4} \div \frac{3(x+4)}{x+7}$ $= \frac{5(x+4)}{x-4} \times \frac{x+7}{3(x+4)}$ $= \frac{5(x+7)}{3(x-4)}$
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