Chapter 11, Problem 24RE

To determine

To calculate: the expression using the matrices given .

Answer to Problem 24RE

Solution: $\left[\begin{array}{ccc}\begin{array}{l}-16\\ -4\end{array}& \begin{array}{l}12\\ -4\end{array}& \begin{array}{l}0\\ 8\end{array}\end{array}\right]$

Explanation of Solution

Multiply each values of $B$ by $-4$ .

  $-4B=\left[\begin{array}{ccc}\begin{array}{l}-16\\ -4\end{array}& \begin{array}{l}12\\ -4\end{array}& \begin{array}{l}0\\ 8\end{array}\end{array}\right]$