2. The matrices \(\mathbf { A }\) and \(\mathbf { B }\) are such that \(\mathbf { A } = \left[ \begin{array} { c c } 2 & - 1
4 & - 7 \end{array} \right]\) and \(\mathbf { B } = \left[ \begin{array} { c c c } 2 & 0 & 9
4 & - 20 & 13 \end{array} \right]\).
- Find the inverse of \(\mathbf { A }\).
- Hence, find the matrix \(\mathbf { X }\), where \(\mathbf { A X } = \mathbf { B }\).