If possible, find $5 A + 4 B$.
$A = \left[ \begin{array} { c c c } - 8 & 9 & 2 \ - 2 & 1 & - 4 \end{array} \right] , B = \left[ \begin{array} { c c c } 8 & 2 & 1 \ - 3 & 8 & 4 \end{array} \right]$
A) $\left[ \begin{array} { c c c } - 72 & 37 & 6 \ 2 & - 27 & - 36 \end{array} \right]$
B) $\left[ \begin{array} { c c c } 0 & 11 & 3 \ - 5 & 9 & 0 \end{array} \right]$
C) $\left[ \begin{array} { l l l } 1 & 0 & 0 \ 0 & 1 & 0 \end{array} \right]$
D) $\left[ \begin{array} { c c c } - 8 & 53 & 14 \ - 22 & 37 & - 4 \end{array} \right]$
E) not possible

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The Answer of If possible, find $5 A + 4 B$.
$A = \left[ \begin{array} { c c c } - 8 & 9 & 2 \ - 2 & 1 & - 4 \end{array} \right] , B = \left[ \begin{array} { c c c } 8 & 2 & 1 \ - 3 & 8 & 4 \end{array} \right]$
A) $\left[ \begin{array} { c c c } - 72 & 37 & 6 \ 2 & - 27 & - 36 \end{array} \right]$
B) $\left[ \begin{array} { c c c } 0 & 11 & 3 \ - 5 & 9 & 0 \end{array} \right]$
C) $\left[ \begin{array} { l l l } 1 & 0 & 0 \ 0 & 1 & 0 \end{array} \right]$
D) $\left[ \begin{array} { c c c } - 8 & 53 & 14 \ - 22 & 37 & - 4 \end{array} \right]$
E) not possible

If Possible, Find 5A+4B5 A + 4 B5A+4B A) [−723762−27−36]\left[ \begin{array} { c c c } - 72 & 37 & 6 \\ 2 & - 27 & - 36 \end{array} \right][−722​37−27​6−36​]

If Possible, Find $5 A + 4 B$ A) $\left[ \begin{array} { c c c } - 72 & 37 & 6 \\ 2 & - 27 & - 36 \end{array} \right]$