Algebra 2 (1st Edition)

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

Chapter 3 Linear Systems and Matrices - Chapter Review - Page 225: 26


$$\begin{pmatrix}17&-20&10\\ 26&82&46\end{pmatrix}$$

Work Step by Step

Finding the product of the matrices, we obtain: $$\begin{pmatrix}4&-1\\ 1&7\end{pmatrix}\begin{pmatrix}5&-2&4\\ 3&12&6\end{pmatrix} \\ \begin{pmatrix}4\cdot \:5+\left(-1\right)\cdot \:3&4\left(-2\right)+\left(-1\right)\cdot \:12&4\cdot \:4+\left(-1\right)\cdot \:6\\ 1\cdot \:5+7\cdot \:3&1\cdot \left(-2\right)+7\cdot \:12&1\cdot \:4+7\cdot \:6\end{pmatrix} \\ \begin{pmatrix}17&-20&10\\ 26&82&46\end{pmatrix}$$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.