$\frac{dy}{dx}=\left(\frac{3x^2+4x-4}{2y-4}\right)$

$\int_0^{\infty}\left(sen^2\right)ada$

$10x^3-24x^2-18x$

$\lim_{x\to044}\left(\frac{1-\cos\left(x\right)}{x^2}\right)$

$\left(\sqrt{3y-1}\right)\left(\sqrt{3y+1}\right)$

$\frac{d}{dx}\:z-7t-2$

$\frac{x^3}{x^2-4x+4}$