Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Section 5.4 - Multiplying Polynomials - Exercise Set: 71

Answer

$9x^{3}+30x^{2}+12x-24$

Work Step by Step

$(3x^{2}+4x-4)(3x+6)$ Multiplying vertically, $=6(3x^{2}+4x-4)+3x(3x^{2}+4x-4)$ $=18x^{2}+24x-24+9x^{3}+12x^{2}-12x$ Combine like terms. $=9x^{3}+30x^{2}+12x-24$
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