Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 5 - Section 5.2 - Multiplying Polynomials - Exercise Set: 54

Answer

$-18x^4+12x^3+42x^2$

Work Step by Step

Using $a(b+c)=ab+ac$ or the Distributive Property, the given expression, $ -6x^2(3x^2-2x-7) ,$ is equivalent to \begin{array}{l}\require{cancel} -6x^2(3x^2)-6x^2(-2x)-6x^2(-7) \\\\= -18x^4+12x^3+42x^2 .\end{array}
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