Calculate: $3\left(\begin{array}{cc}1 & 2 \ -4 & 2\end{array}\right)+2\left(\begin{array}{cc}1 & 0 \ 0 & 3\end{array}\right)-\left(\begin{array}{cc}4 & 2 \ 4 & 1\end{array}\right)$

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The Answer of Calculate: $3\left(\begin{array}{cc}1 & 2 \ -4 & 2\end{array}\right)+2\left(\begin{array}{cc}1 & 0 \ 0 & 3\end{array}\right)-\left(\begin{array}{cc}4 & 2 \ 4 & 1\end{array}\right)$