$\int-\frac{3x^3+\sqrt[3]{x}}{x}dx$

$\int\frac{x+1}{x^3+x^2-4x-4}dx$

$\lim_{x\to-2}\left(\frac{\left|x+2\right|}{x+2}\right)$

$3\sqrt{3}+4\sqrt{3}-21\sqrt{3}$

$x=2y$

$\csc x\cdot\left(1-\csc\left(x\right)\right)=\frac{\sin\left(x\right)-1}{\sin\left(x\right)^2}$