Answer
$1334.4a^3+1668a^2$
Work Step by Step
By multiplying each term of the polynomial by the factor $417a$, and then adding the products, we have
$$
417a(3.2a^2 + 4a)=417a(3.2a^2) +417a( 4a)\\
=1334.4a^3+1668a^2
.\\
$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Section 5.5 - Multiplication of Polynomials - Exercise - Page 226: 27
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