Problems writing a function with a derivative so it can be integrated

I am trying to integrate the Euler-Bernoulli Beam equation with large deflections in matlab. the equation is:

EI(d4w/dx4) - (3/2)EA(dw/dx)^2 (d2w/dx2) = q(x)

I need to integrate this equation four times so the term (d4w/dx4) becomes just w(x). I planned on creating a symbolic function and then using int to integrate the function as an indefinite integral, however I cannot find out how to write the derivatives into the function.

E,I,& A are all constants.

Any advice will help. Thanks!!