Answer
$\frac{-20x^7}{y^4}$
Work Step by Step
$(-5x^3y^2)(4x^4y^{-6})=-5\cdot4x^{3+4}y^{2-6}=-20x^7y^{-4}=\frac{-20x^7}{y^4}$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 8 - Cumulative Review Exercises - Page 660: 19
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