Matrices & Systems · Medium problem

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