Answer
\begin{bmatrix}
-56 & -38 \\
-28 & 6
\end{bmatrix}
Work Step by Step
$$
\begin{bmatrix}
-6 & -8 \\
2 & -4
\end{bmatrix}
\times
\begin{bmatrix}
0 & 5 \\
7 & 1
\end{bmatrix}
=
\begin{bmatrix}
(-6\times0)+(-8\times7) & (-6\times5)+(-8\times1) \\
(2\times0)+(-4\times7) & (2\times5)+(-4\times1)
\end{bmatrix}
=
\begin{bmatrix}
-56 & -38 \\
-28 & 6
\end{bmatrix}
$$