Answer
$10x^{2}-2x$
Work Step by Step
We are given that $f(x)=2x$ and $g(x)=5x-1$.
We know that $(fg)(x)=f(x)\times g(x)$.
Therefore, $(fg)(x)=(2x)\times(5x-1)=2x\times5x+2x\times-1=10x^{1+1}+(-2x)=10x^{2}-2x=10x^{2}-2x$.
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: 105
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