Given And $d = - 3$ Determine $c A + d B$

Given:
$A = \left[ \begin{array} { r r r } 8 & - 7 & 0 \\ - 5 & - 2 & 3 \end{array} \right] , B = \left[ \begin{array} { r r r } 3 & 0 & 7 \\ 4 & 9 & - 2 \end{array} \right] , c = 8$ and $d = - 3$ determine $c A + d B$ .

A) $\left[ \begin{array} { r r r } 55 & - 7 & 7 \\ - 52 & 7 & 1 \end{array} \right]$
B) $\left[ \begin{array} { r r r } 73 & - 56 & 21 \\ - 28 & 11 & 18 \end{array} \right]$
C) $\left[ \begin{array} { r r r } 55 & - 56 & - 21 \\ - 52 & - 43 & 30 \end{array} \right]$
D) $\left[ \begin{array} { r r r } 55 & - 56 & - 21 \\ - 1 & 7 & 1 \end{array} \right]$
E) not possible

Correct Answer:

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