How to find the equilibrium points of this dynamical system?

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Consider the dynamical system

$$\dot x= cx - \frac{x}{1+x^{2}}$$ for $x\in\mathbb{R}$, with $c$ a positive constant.

Establish the location and number of equilibrium points of the system for all values of $c$. Then using linear stability analysis, determine the stability of the equilibrium points for all values of $c$.

My solution so far:

I set the RHS to $0$ and rearranged to get $$x(cx^2+(c-1))=0$$

so then $x=0$ or $cx^2+(c-1)=0$.

This second equation can be rearranged as $cx^2=1-c$

so when $c=1$ we have $x=0$, when $c\gt1$, we have no solutions.

But I am not sure what happens in the case $0\lt c \lt 1$.