Answer
$$\frac{16x^3}{y^2}$$
Work Step by Step
Using the rules of exponents, we find:
$$\frac{y}{5x}\cdot \frac{80x^4}{y^3}\\ \frac{16x^4y}{xy^3}\\ \frac{16x^3}{y^2}$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 8 Rational Functions - Chapter Review - Page 605: 19
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