Answer
$12z^2-28z+8$
Work Step by Step
Using the Distributive Property, the given expression simplifies to
\begin{align*}
&
[2z(6z)+2z(-2)]+[-4(6z)-4(-2)]
\\&=
[12z^2-4z]+[-24z+8]
\\&=
12z^2+(-4z-24z)+8
\\&=
12z^2-28z+8
.\end{align*}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.4 - Multiplying Polynomials - Exercise Set - Page 289: 16
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