$\int\sin\left(11x+12\right)dx$

$( 5 x ^ { \frac { 1 } { 8 } } ) ^ { 2 }$

$\left(x\left(x+6\right)\right)^{\frac{1}{2}}$

$\int\frac{-9}{\left(x+5\right)^2\left(x-1\right)}dx$

$\frac{1+x^2+x}{2x-2}$

$\lim_{x\to-1.99}\left(\frac{x^2-4}{x+2}\right)$

$\frac{x^5-4x^3+4x^2+4x-3}{x^2-2}$