$\frac{3x^3y^2z}{6x^2y^5}$

$\left(\frac{\left(x^2y^{-\frac{1}{6}}z^{\frac{1}{2}}\right)^4}{\left(x^{\frac{1}{3}}y^{\frac{1}{6}}z^{\frac{1}{2}}\right)^{-6}}\right)^{-1}$

$\left(5x^2-2x\right)^4$

$3y=2y+10$

$\int_0^{\infty}\left(\frac{10\sin x}{x}\right)dx$

$-\left(5+6-7+5\right)$

$\int_0^2\left(\frac{sen^2\left(2x\right)}{1+\cos\left(x\right)}\right)dx$