How Well Do You Know Matrices?
Algebra
Level
2
If \( \alpha =\begin{bmatrix} 1 & -6 \\ 4 & 8 \end{bmatrix}\) and \(\beta =\begin{bmatrix} 2 & 4 \\ 8 & 3 \end{bmatrix},\) what is the value of \({ 3\alpha }-{ 2\beta }?\)
Express your answer as the sum of all elements in the final matrix.
by
isaiah simeone