I'm trying to solve this differetial eqation. dy/dx=3y^(2/3).
This is my input: DSolve[{y'[x] = 3 y[x]^(2/3), y[2] = 0}, y[x], x]
This is my output: DSolve::deqn: "Equation or list of equations expected instead of 3\ y[x]^(2/3) in the first argument {3\ y[x]^(2/3),0}."
I can't seem to find the problem.
DSolve[{y'[x] == 3 y[x]^(2/3), y[2] = 0}, y[x], x] should be better, I presume ($==$ instead of $=$) ! You should get $$y(x)=x^3-6 x^2+12 x-8$$