$3=\ln\left(x\right)+\ln\left(y^2\right)$

$\left(\frac{1}{4}\right)^{-\infty}$

$\int\frac{-x+2}{3\left(x^2-x+1\right)}dx$

$n^2-21n+20$

$2\left(x-y\right)+4x$

$\lim_{x\to\infty}\left(\sqrt[x]{3^{1+3x}}\right)$

$\lim_{x\to-2}\left(\frac{\sqrt[3]{3x^2+x-10}}{7x^2+13x-2}\right)$