Answer
$12z^{4}+4z^{3}+3z^{2}+z$.
Work Step by Step
Make a table of products.
$\begin{array}{rll}
& z & +3z^{2}\\
\hline 4z^{2}| & 4z^{3} & 12z^{4}\\
1 |& z & 3z^{2}
\end{array}$
Answer: $12z^{4}+4z^{3}+3z^{2}+z$.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - 8-3 Multiplying Binomials - Practice and Problem-Solving Exercises - Page 502: 41
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