A = (2−43510)\begin{pmatrix}2 & -4 & 3\\5 & 1 & 0\end{pmatrix}(25−4130), B = (14−2−33−1)\begin{pmatrix}1 & 4 & -2\\-3 & 3 & -1\end{pmatrix}(1−343−2−1)
2B = 2 x (14−2−33−1)\begin{pmatrix}1 & 4 & -2\\-3 & 3 & -1\end{pmatrix}(1−343−2−1) = (28−4−66−2)\begin{pmatrix}2 & 8 & -4\\-6 & 6 & -2\end{pmatrix}(2−686−4−2)
A + 2B = (2−43510)\begin{pmatrix}2 & -4 & 3\\5 & 1 & 0\end{pmatrix}(25−4130) + (28−4−66−2)\begin{pmatrix}2 & 8 & -4\\-6 & 6 & -2\end{pmatrix}(2−686−4−2) = (44−1−17−2)\begin{pmatrix}4 & 4 & -1\\-1 & 7 & -2\end{pmatrix}(4−147−1−2)
