$f\left(x\right)=\frac{e^x\ln\left(x^2\right)}{\sqrt{x^3}}$

$\lim_{t\to\infty}\left(\frac{\ln\left(3t\right)}{t^2}\right)$

$4x^2-9y^{10}z^2$

$5\left(4x-2\right)+3x$

$50+20x>800$

$i ( 2 + i )$

$\lim_{x\to10}\left(\left(x-10\right)\cdot\frac{e^{-x}}{x^3-20x^2+125x-250}\right)$