How to determine the equilibrium points of a non linear ODE?

%Given ODE-> xdot = x^4 - 7x^2 + 6x

%For equilibrium, xdot = 0 and the roots of the equation are given by

P = [1 0 -7 6 0];

r = roots(P);

%The roots are = 0, -3, 2, 1