Hello!! I am taking a self study diff e course, and I have run into a problem with no one to ask for help. Here is the problem: d/dt [ h^3(t) + 3h(t)^2 + 3h(t) ] = q(t) h(t) is output. q(t) is input. is this Nonlinear First Order Differential Equation. But I could not expand to Taylor Series for linearization... :/ I'm trying to find the transfer function. Thanks!