$y=\ln\left(8-4x^2\right)$

$\lim_{x\to\infty}\frac{\sqrt{-3x+6x^2}}{x^2+2}$

$x\cdot\frac{dy}{dx}=x^2\cdot y^2$

$\lim_{x\to-\infty}\left(\frac{\cos\left(x\right)}{\cot\left(x\right)}\right)$

$-y-4x-6z+2x+7y-12z$

$\frac{29x-56}{3x-7\:2x-3}$

$\int9\left(3x-1\right)^{-6}dx$