$x^2+14x+33$

$\frac{5}{1-x}=y+2$

$\frac{sec\left(x\right)-csc\left(x\right)}{sec\left(x\right)+csc\left(x\right)}=\frac{1-cot\left(x\right)}{1+cot\left(x\right)}$

$\left(b^{2x}+3\right)\left(b^{2x}-3\right)$

$\frac{-12x^4+7x^3-5}{x-6}$

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

$\int\frac{6}{x\left(x^2+5\right)^2}dx$