Answer
$18x^{2}-24x$
Work Step by Step
We are given that $f(x)=3x$ and $g(x)=6x-8$.
We know that $(fg)(x)=f(x)\times g(x)$.
Therefore, $(fg)(x)=(3x)\times(6x-8)=3x\times6x+3x\times-8=18x^{1+1}+(-24x)=18x^{2}-24x=18x^{2}-24x$.
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 4 - Section 4.4 - Multiplying Polynomials - 4.4 Exercises - Page 306: 106
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