$16^2+4^3\cdot2$

$csc\left(x\right)\:sec\left(x\right)=tan\:\left(x\right)+cos\:\left(x\right)\:csc\:\left(x\right)\:$

$\left(6p-2r\right)$

$\lim_{x\to0}\left(\frac{1-\cos^3\left(x\right)}{x^2-1}\right)$

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

$\frac{2}{3}x+\left(-3\right)\:+\left(-2\right)-\frac{1}{3}x$

$25x^2yz+30xy^2-60x^3yz^2$