$$[\begin{matrix}1&-3\\ 2&1\end{matrix}][\begin{matrix}2-1\\ \end{matrix}]$$
$\left(\begin{matrix}-4&-4\\6&-1\end{matrix}\right)$
$$\left(\begin{matrix}1&-3\\2&1\end{matrix}\right)\left(\begin{matrix}2&-1\\2&1\end{matrix}\right)$$
$$\left(\begin{matrix}2-3\times 2&\\&\end{matrix}\right)$$
$$\left(\begin{matrix}2-3\times 2&-1-3\\2\times 2+2&2\left(-1\right)+1\end{matrix}\right)$$
$$\left(\begin{matrix}2-6&-1-3\\4+2&-2+1\end{matrix}\right)$$
$$\left(\begin{matrix}-4&-4\\6&-1\end{matrix}\right)$$
Show Solution
Hide Solution
$28$
