In problem first solve the equation f(x) = 0 to find the critical points of the given auto...

In problem first solve the equation f(x) = 0 to find the critical points of the given autonomous differential equation dx/dt = f(x). Then analyze the sign of f(x) to determine whether each critical point is stable or unstable, and construct the comsfx/iuling phase diagram for the differential equation. Next, solve the differential equation explicitly for x(t) in terms of t. Finally, use either the exact solution or a computer-generated slope field to sketch typical solution curves for the given differential equation, and verify visually the stability of each critical point.