I want to solve an ODE but the result is not a polynomial as it should be, it just writes some integrations instead of solving this integrations. I show this problem as:

when I integrate the equation, instead of integrating it just writes integrate of the expression, what is wrong? I'm willing to integrate regard to x. My whole worksheet is uploaded. What should I do? I just right clicked on it and used integration. I'm using maple 13. As you see I want to solve the last ODE (F[0...