Answer
$\left[\begin{matrix}
0&12 &-20\\
4& 8 &24
\end{matrix}\right]$
Work Step by Step
The given matricx is:
$A=\left[\begin{matrix}
0& 3 &-5\\
1& 2 &6
\end{matrix}\right]$
Multiply both sides by $4$.
$4A=4\left[\begin{matrix}
0& 3 &-5\\
1& 2 &6
\end{matrix}\right]$
Multiply each element by $4$.
$4A=\left[\begin{matrix}
4\cdot 0&4\cdot 3 &4\cdot (-5)\\
4\cdot 1& 4\cdot 2 &4\cdot 6
\end{matrix}\right]$
Simplify.
$4A=\left[\begin{matrix}
0&12 &-20\\
4& 8 &24
\end{matrix}\right]$.