Algebra 2 (1st Edition)

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

Chapter 4 Quadratic Functions and Factoring - 4.6 Perform Operations with Complex Numbers - 4.6 Exercises - Mixed Review - Page 282: 83

Answer

$\begin{bmatrix} -3 &13\\ 12& -20 \end{bmatrix}$

Work Step by Step

$\begin{bmatrix} 2 & -1\\ 0 & 4 \end{bmatrix}\times\begin{bmatrix} 0 & 4\\ -3 & -5 \end{bmatrix}=\begin{bmatrix} 2.0+3.(-1)& 2.4+(-1)(-5)\\ 0.0+4.3& 0.4+4(-5) \end{bmatrix}=\begin{bmatrix} -3 &13\\ 12& -20 \end{bmatrix}$
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