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

$x^2-22-121$

$\int\left(\frac{x^2+5}{x-6}\right)dx$

$\frac{cos\left(x\right)}{1+\cos\left(x\right)}+\frac{\cos\left(x\right)}{1-cos\left(x\right)}=2\:cot\left(x\right)\:x\:csc\left(x\right)$

$-13-17-\left(-17\right)-13+0$

$1-\left(4^3\right)$

$\frac{dx}{dt}=x+t$