$-ln\left(x-1\right)+ln\left(x-2\right)\:=\:y^2$

$\left(2m^2+5n^3\right)^2$

$\frac{dy}{dx}\:y\left(2x+y^2\right)$

$\sec\left(t\right)^2+\csc\left(t\right)^2$

$2x^4-4x^3-6x^2+8x+8$

$\frac{x}{2}+4\:>\frac{2x}{3}-\:\frac{x}{8}$

$-2t\left(12-t\right)+3\left(5-t-3t^2\right)$