## Runge-Kutta

I need help starting this problem :
We want to solve a problem of initial value involving the differential equation $x+2tx'+xx'=3$ via the Runge-Kutta method. Which function must we program? End of the problem.
If I understand well I need to calculate the Runge-Kutta equation of the DE? How to start this? Also... is it normal that we don't have an initial value?