Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.5 - Multiplying Polynomials - Exercise Set: 15

Answer

$7x^{3}+14x^{2}-7x$

Work Step by Step

$7x(x^{2}+2x-1)=(7x)(x^{2})+(7x)(2x)+(7x)(-1)=7x^{3}+14x^{2}+(-7x)=7x^{3}+14x^{2}-7x$
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