simplify/factor

1/2(2x^2-x+1)^(1/2) (4x-1)(x^3+1)^1/3 + (2x^2-x+1)^1/2 1/3(x^3+1)^-2/3 (3x^2)

i think: let u = (2x^2-x+1) and w= (x^3+1)