Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 3 Linear Systems and Matrices - 3.5 Perform Basic Matrix Operations - Guided Practice for Examples 1 and 2 - Page 188: 4

Answer

$\begin{bmatrix} 10&-6\\ -9&-9 \end{bmatrix}$

Work Step by Step

$3\begin{bmatrix} 4&-1\\ -3&-5 \end{bmatrix}+\begin{bmatrix} -2&-2\\ 0&6 \end{bmatrix}=\begin{bmatrix} 12&-3\\ -9&-15 \end{bmatrix}+\begin{bmatrix} -2&-2\\ 0&6 \end{bmatrix}=\begin{bmatrix} 10&-6\\ -9&-9 \end{bmatrix}$
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