Can anyone give me any pointers with this differential equation.

I seriously have no clue what I am doing with it (More detail the better (Nod))

Find the particular solution of:

x^3 dy/dx = y^3 - 3yx^2 , y(1) = 1

..... remember, I am really unsure what I am doing with this.

Thankyou. math_Newbie.