$\int\left(x^3+3x\right)^8\left(x^2+1\right)dx$

$\frac{d^3}{dx^3}\left(3x^4+\frac{1}{2}\right)\sqrt{x}$

$\frac{dy}{dx}=sin\:\left(x+y\right)$

$\left(7x+32\right)\left(7x-32\right)$

$\left(x^{-1}y^4-2z^3w^{-3}\right)^2$

$\lim_{x\to\infty}\left(\frac{cos\left(18x\right)}{18x}\right)$