$$16+40y+25y^2$$

$$x^2-3x=3-x$$

$$\int\frac{x^5}{\sqrt{3-x^2}}dx$$

$$\left(\frac{1}{2}x+y\right)^3$$

$$\int e^{-8x}\cdot sin\left(2x\right)dx$$

$$\frac{dy}{dx}=\frac{1}{4}\left(y+1\right)\left(y-2\right)^2$$

$$\frac{d}{dx}senx\cdot cosx+y=tan^2x$$