[6−13][6-13][6−13]
[−2−93]\left[\begin{array}{lll}-2 & -9 & 3\end{array}\right][−2−93]
[61−3]\left[\begin{array}{c}6 \\1 \\-3\end{array}\right]61−3
[6−13]\left[\begin{array}{c}6 \\-1 \\3\end{array}\right]6−13