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If Possible, Find 5A+4B5 A + 4 B A) [7237622736]\left[ \begin{array} { c c c } - 72 & 37 & 6 \\ 2 & - 27 & - 36 \end{array} \right]

Question 50

Multiple Choice

If possible, find 5A+4B5 A + 4 B .
A=[892214],B=[821384]A = \left[ \begin{array} { r r r } - 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) [7237622736]\left[ \begin{array} { c c c } - 72 & 37 & 6 \\ 2 & - 27 & - 36 \end{array} \right]
B) [0113590]\left[ \begin{array} { c c c } 0 & 11 & 3 \\ - 5 & 9 & 0 \end{array} \right]
C) [100010]\left[ \begin{array} { l l l } 1 & 0 & 0 \\ 0 & 1 & 0 \end{array} \right]
D) [8531422374]\left[ \begin{array} { c c c } - 8 & 53 & 14 \\ - 22 & 37 & - 4 \end{array} \right]
E) not possible

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