7. Verify the associative property of matrices

Answer variants:

$\left[\begin{array}{ll}336& 694\\ 154& 331\end{array}\right]$

$\left[\begin{array}{ll}20& 45\\ 27& 53\end{array}\right]$

$\left[\begin{array}{ll}336& 694\\ 154& 331\end{array}\right]$

$\left[\begin{array}{ll}54& 76\\ 41& 17\end{array}\right]$

Show that \(A(BC) = (AB)C\) if \(A =\begin{bmatrix}
6 & 8\\
5 & 2
\end{bmatrix}, B = \begin{bmatrix}
1 & 6\\
6 & 5
\end{bmatrix}, C = \begin {bmatrix}
2 & 3\\
3 & 7
\end{bmatrix}\)