$\int\frac{1}{\left(x-2\right)\left(x+5\right)}dx$

$x\:+\:6\:=\:-7x\:-\:2$

$\frac{d}{d\left(\theta\right)}\left(\frac{\left(\theta\right)-7}{\left(\theta\right)cos\left(\theta\right)}\right)$

$\left(\frac{a^3b^3}{b^{-2}}\right)^2$

$\frac{x^2y^{-7}}{x^8y^{-5}}$

$2\sin^2\left(x\right)-\tan\left(x\right).\cot\left(x\right)=0$

$-6898\:+\:-2040$