Answer
$\begin{bmatrix}6&0\\12&24\\-6&12\end{bmatrix}$
Work Step by Step
We are given the matrix:
$A=\begin{bmatrix}1&0\\2&4\\-1&2\end{bmatrix}$
Compute $6A$:
$6A=6\begin{bmatrix}1&0\\2&4\\-1&2\end{bmatrix}=\begin{bmatrix}6(1)&6(0)\\6(2)&6(4)\\6(-1)&6(2)\end{bmatrix}$
$=\begin{bmatrix}6&0\\12&24\\-6&12\end{bmatrix}$
