$-6y^4\cdot\frac{1}{\sqrt{u}}\cdot2\sqrt{u}$

$\log\left(2x-2\right)=\log\left(x\right)+\log\left(x-1\right)$

$-4x-4=36$

$\frac{1}{3}x^3=x^2$

$\int tg\left(x\right)dx$

$\lim_{x\to0}\left(\frac{2\arctan\left(x\right)-x}{2x-\arcsin\left(x\right)}\right)$

$\left(-\frac{5}{2}+6v\right)^2$