Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 4 - Polynomials - 4.2 Negative Exponents and Scientific Notations - 4.2 Exercise Set: 61

Answer

$5y^{3}$

Work Step by Step

Using the laws of exponents, the given expression, $ \dfrac{15y^{-7}}{3y^{-10}} $, is equivalent to \begin{array}{l}\require{cancel} \dfrac{\cancel{3}\cdot5y^{-7-(-10)}}{\cancel{3}} \\\\= 5y^{-7+10} \\\\= 5y^{3} .\end{array}
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