Matrices & Systems · Medium problem

Let $A = \begin{pmatrix}4 & -2 & 2 \\ 3 & 1 & -1\end{pmatrix}$ and $B = \begin{pmatrix}-1 & 3 \\ -2 & -3 \\ 1 & -3\end{pmatrix}$. Find the entry in row $2$, column $1$ of $AB$.