$22t\:-\:5r\:+\:-10t\:-\:2r$

$\left(4u-8+3v\right)\left(4u+5v-8\right)$

$\frac{dy}{dx}=\frac{1xy}{x^2+y^2}$

$\left(5\right)^2\left(3\right)\left(1\right)+2\left(5\right)\left(3\right)^3$

$\int\left(\frac{3-s}{\sqrt{16+6s-s^2}}\right)ds$

$\lim_{x\to0}\left(\frac{a^x-2\cdot\:\:cos\left(x\right)+a^{-x}}{xsin\left(x\right)}\right)$

$( 6 x y ) ( b c ) ( b x )$