$\frac{dy}{dx}\left(3xy+7\right)^2$

$\left(3y\:\:\:\:\:+8w\right)\left(_{1.5y-14z-2w}\right)$

$\int\left(\frac{1}{\sqrt{36x^2-2916}}\right)dx$

$\lim_{x\to1}4x^2$

$\left(sec^2\left(\theta\right)+1\right)\left(\left(-sin^2\left(\theta\right)+1\right)\right)=2-sin^2\left(\theta\right)$

$\left(3x^2+3\right)^5$

$\int\frac{-4}{\left(x^2+4\right)\left(x^2+4\right)}dx$