-\lambda^{3}+(-) \lambda^{2}-\lambda+\left(\frac{}{}\right)=0 \text { The characteristic equation for the matrix } B=\left(\begin{array}{ccc}

5 & -2 & 3 \\

0 & -4 & -3 \\

-3 & 3 & 3

\end{array}\right) \text { is }