Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Section 5.1 - Exponents and Scientific Notation - Exercise Set - Page 262: 5



Work Step by Step

We are given the expression $\frac{y^{-2}}{x^{-4}}$. $\frac{y^{-2}}{x^{-4}}=\frac{x^{4}}{y^{2}}$ In general, $x^{−b}=\frac{1}{x^{b}}$ and $\frac{1}{x^{-b}}=x^{b}$, for some number x.
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