Algebra 2 (1st Edition)

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

Chapter 3 Linear Systems and Matrices - 3.6 Multiplying Matrices - Guided Practice for Example 2 - Page 196: 3


$\begin{bmatrix} -12&-21\\ 7&10 \end{bmatrix}$

Work Step by Step

$AB=\begin{bmatrix} -3\cdot1+3\cdot-3&-3\cdot5+3\cdot-2\\ 1\cdot1+-2\cdot-3&1\cdot5+-2\cdot-2 \end{bmatrix} =\begin{bmatrix} -12&-21\\ 7&10 \end{bmatrix}$
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