Problem:
Find the characteristic polynomial of the following matrix:
$\left(
\begin{array}{cc}
 -4 & -8 \\
 -\frac{26}{3} & -\frac{8}{3} \\
\end{array}
\right)$
Answer:
$x^2+\frac{20 x}{3}-\frac{176}{3}$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/characteristic_polynomial/41134.txt'}