The general solution of the differential equation $$ (y^2 + x + 1) \, dy = (y + 1) \, dx $$ is:
The general solution of the differential equation \[ (x + y)y \,dx + (y - x)x \,dy = 0 \] is:
The sum of the order and degree of the differential equation: \[ \frac{d^y}{dx^t} = c + \left( \frac{d^y}{dx^t} \right)^{\frac{3}{2}} \] is: