Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 5 - Section 5.2 - Multiplication of Polynomials - Exercise Set: 9

Answer

$9x^3+8x^2$

Work Step by Step

Distribute $4x^2$ to each term of the binomial to obtain: $=3x^2(3x)+4x^2(2)$ Multiply the coefficients together then use the rule "$a^m \cdot a^n=a^{m+n}$" to the variables to obtain: $=9x^{2+1} + 8x^2 \\=9x^3+8x^2$
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