DSolve[-(x^4*y[x]^5) + 3*x^5*y[x]^4*Derivative[1][y][x] - (-1 + 3*x^6*y[x]^3)*Derivative[1][y][x]^2 + x^7*y[x]^2*Derivative[1][y][x]^3 == 0,y[x],x]