Solve the following equations: PE \[ \left|\begin{array}{ccc} x & -...

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Solve the following equations:
PE
\[
\left|\begin{array}{ccc}
x & -6 & -1 \\
2 & -3 x & x-3 \\
-3 & 2 x & x+2
\end{array}\right|=0
\]
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