$n^2-25=0$

$x^{-2}\left(x^{\frac{11}{9}}\right)$

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

$\lim_{v\to\infty}\:\left[\frac{2cos\left(3x\right)}{x^2}-\frac{2}{x^2}\right]$

$\frac{x^3+x-12x^2-42}{x-3}$

$\frac{2x^4-250x}{\sqrt{x}^2-9-4}$

$28j+20-14j+10-12$