shooting method for two functions ODE

Dear Matlab users,

I have to solve this problem

f_xx = p(x)

with shooting method. Boundary conditions are

f( x = 0 ) = 0,   f( x = 1) = 0

I must guess

f'(0) and find f .

I must find f but how? On the right hand side p(x) is the function of x .

On the left hand side f_xx is the second order ode. Could you please help me