$\left(3x\left(-3\right)+10:2\right)+8:2-\left(-1\right)$

$16g^2-9$

$\lim_{x\to\infty}\left(\frac{log\left(log\left(n\right)\right)}{\left(log\left(log\left(log\left(n\right)\right)\right)\right)^8}\right)$

$f\left(x\right)=x^3-x^2\sin\left(x\right)$

$3cscx\:-8\:cotx$

$4a^2+8ac+2ad+8ab-16bc+4bd$

$\frac{x+1}{x+2}+\frac{x+1}{x+2}-\frac{x-2}{x+4}$