$\frac{-12\pm\sqrt{12^2-4\left(1\right)\left(24\right)}}{2\left(1\right)}$

$-47-6-8$

$2\sec^3\left(x\right)-2\sec^2\left(x\right)-\sec\left(x\right)+2$

$\lim_{x\to-\infty}\left(3-2x-\frac{x^2}{\sqrt{\left(x+1\right)\left(x-2\right)}}\right)$

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

$\frac{32m^5+1}{2m+1}$

$\frac{x+1+y}{y+x+1}$