Answer
\begin{bmatrix}
-2 & 7
\end{bmatrix}
Work Step by Step
$$
\begin{bmatrix}
-1 & -1
\end{bmatrix}
\times
\begin{bmatrix}
8 & 2 \\
-6 & -9
\end{bmatrix}
=
\begin{bmatrix}
(-1\times8)+(-1\times(-6)) & (-1\times2)+(-1\times(-9))
\end{bmatrix}
=
\begin{bmatrix}
-2 & 7
\end{bmatrix}
$$
