Elementary Algebra

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

Chapter 5 - Exponents and Polynomials - 5.2 - Multiplying Monomials - Problem Set 5.2: 11

Answer

$5x^4y$

Work Step by Step

Using $x^a\cdot x^b=x^{a+b}$, the given expression, $ (-xy)(-5x^3) ,$ simplifies to \begin{array}{l}\require{cancel} (-1)(-5)x^{1+3}y^{} \\\\= 5x^4y .\end{array}
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