$$\int e^{-x}\left(1+e^{-x}\right)^2dx$$

$$\frac{dy}{dx}=e^{5x}+4y$$

$$\frac{3x^3+x^2+x-2}{x^2+1}$$

$$x^3+2xy^3=6xy$$

$$^{3\sqrt{0.125}}$$

$$\frac{32y^3}{\left(y^2-5\right)^2}-\frac{32y}{y^2-5}-10y=0$$

$$4\cdot1+4\cdot3$$