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Problem
Problem
Find
x
x
x
, so that
[
1
1
0
3
]
[
3
2
1
x
]
[
1
1
0
3
]
[
3
2
1
x
]
=
O
\begin{bmatrix} 1 & 1 \\ 0 & 3 \end{bmatrix} \begin{bmatrix} 3 & 2 \\ 1 & x \end{bmatrix} \begin{bmatrix} 1 & 1 \\ 0 & 3 \end{bmatrix} \begin{bmatrix} 3 & 2 \\ 1 & x \end{bmatrix} = O
[
1
0
1
3
]
[
3
1
2
x
]
[
1
0
1
3
]
[
3
1
2
x
]
=
O
.
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