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

$\int_4^6\left(\frac{x^2-1}{\left(x^2+1\right)\left(x-2\right)}\right)dx$

$\sqrt{64-8\cos\left(x\right)}$

$\frac{1}{36}\cdot\left(2187a+686b\right)$

$2m^2+2m+12$

$-145-500$

$csc\left(x\right)\:cos2\left(x\right)\:+\:sin\left(x\right)\:=\:csc\left(x\right)$