College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 8 - Review Exercises - Page 634: 13

Answer

$\begin{bmatrix} 4& -4 \\ 3& 9 \\ 4&4 \end{bmatrix}$

Work Step by Step

$\begin{bmatrix} 1& 0 \\ 2& 4 \\ -1&2 \end{bmatrix}+\begin{bmatrix} 3& -4 \\ 1& 5\\ 5&2 \end{bmatrix}=\begin{bmatrix} 1+3& 0-4 \\ 2+1& 4+5 \\ -1+5&2+2 \end{bmatrix}=\begin{bmatrix} 4& -4 \\ 3& 9 \\ 4&4 \end{bmatrix}$
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