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: 50

Answer

$-3b^{3}-14b^{2}-13b+6$

Work Step by Step

$(3+b)(2-5b-3b^{2})=3(2-5b-3b^{2})+b(2-5b-3b^{2})=(3)(2)+(3)(-5b)+(3)(-3b^{2})+(b)(2)+(b)(-5b)+(b)(-3b^{2})=6-15b-9b^{2}+2b-5b^{2}-3b^{3}=-3b^{3}-14b^{2}-13b+6$
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