$$\left( \begin{array} { l l } { 8 } & { 5 } \\ { 6 } & { 4 } \\ { 4 } & { 7 } \end{array} \right)$$
$\left(\begin{matrix}8&5\\6&4\\4&7\end{matrix}\right)$
$\left(\begin{matrix}8&6&4\\5&4&7\end{matrix}\right)$
