$-2n^36^2-9a^3n^2+6n^3b-2a^9n^2$

$\int\frac{\left(x^2+6x+9\right)}{\left(x-1\right)\left(x-2\right)\left(x+4\right)}dx$

$\frac{1}{64}m^{12}+125$

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

$\left(x+2\right)\left(x-2\right)\left(2x+2\right)$

$3\csc\left(x\right)+\sin^2\left(y\right)=3$

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