Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set: 42

Answer

$7a^3b^4$

Work Step by Step

We use the rules of exponents to obtain: $\frac{-56a^5b^7}{-8a^2b^3}=\frac{-56}{-8}\times\frac{a^5}{a^2}\times\frac{b^7}{b^3}=7\times a^{5-2}\times b^{7-3}=7a^3b^4$
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