Answer
$B A=\left[\begin{array}{c}2 A_{1}+3 A_{2} \\ A_{1}-A_{2}+A_{3} \\ -A_{1}+6 A_{2}+4 A_{3}\end{array}\right]$
Work Step by Step
\[
A=\left[\begin{array}{ccc}
1 & 0 & -2 \\
-3 & 1 & 1 \\
2 & 0 & -1
\end{array}\right], B=\left[\begin{array}{ccc}
2 & 3 & 0 \\
1 & -1 & 1 \\
-1 & 6 & 4
\end{array}\right]
\]
Denote the rows of the matrix $\mathrm{A}$ by $A_{1}, A_{2},$ and $A_{3}$
\[
B A=\left[\begin{array}{ccB A=\left[\begin{array}{c}
c}
2 & 3 & 0 \\
1 & -1 & 1 \\
-1 & 6 & 4
\end{array}\right]\left[\begin{array}{l}
A_{1} \\
A_{2} \\
A_{3}
\end{array}\right]
\]
clarify the result by a single matrix.
