· (7 points) Find all equilibrium solutions and classify each as stable, semi-stable, or unstable. Plot the phase portrait of the solutions of this equation.-\frac{d y}{d x}=y^{3}(y+3)^{2}(y-1)-\text { s) If } y(0)=-2, \text { what is } \lim _{x \rightarrow \infty} y(x) \text { ? }

Differential Equations(Mathematics)