Problem:
Find the characteristic polynomial of the following matrix:
$\left(
\begin{array}{ccc}
 -3 & 7 & -6 \\
 -4 & -7 & -8 \\
 -4 & -2 & -2 \\
\end{array}
\right)$
Answer:
$-x^3-12 x^2-29 x+294$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/characteristic_polynomial/501.txt'}