For the following path of a unity feedback system in state space representation, determine if the closed-loop system is stable using the Routh-Hurwitz criterion and MATLAB.

\[\begin{aligned}& \dot{x}=\begin{array}{rrrr}0 & 1 & 0 & 0 \\0 & 1 & 5 x+ & 0 \\-3 & -4 & -5 & 1\end{array} \\& y=\left[\begin{array}{lll}0 & 1 & 1\end{array}\right] .\end{aligned}\]