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 - Page 200: 51

Answer

$-28x^3+16x$

Work Step by Step

Using $a(b+c)=ab+ac$ (or the Distributive Property), the given expression, $ -4x(7x^2-4) ,$ is equivalent to \begin{array}{l}\require{cancel} -4x(7x^2)-4x(-4) \\\\= -28x^3+16x .\end{array}
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