$(1$ point$)$ Solve the system

$\frac{dx}{dt}=\left[\begin{array}{ccc}3& -110& -3\end{array}\right]x$

with $x(0)=\left[\begin{array}{c}-13\end{array}\right]$

Give your solution in real form.

$x_1=$

$x_2=$

An ellipse with clockwise orientation

Describe the trajectory.