Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Section 7.2 - Multiplying and Dividing Rational Expressions - Exercise Set: 1

Answer

$\dfrac{3x}{y^{2}}\cdot\dfrac{7y}{4x}=\dfrac{21}{4y}$

Work Step by Step

$\dfrac{3x}{y^{2}}\cdot\dfrac{7y}{4x}$ Multiply both rational expressions and simplify by removing repeated factors in the numerator and the denominator: $\dfrac{3x}{y^{2}}\cdot\dfrac{7y}{4x}=\dfrac{(3x)(7y)}{(y^{2})(4x)}=\dfrac{21xy}{4xy^{2}}=\dfrac{21}{4y}$
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