$\lim_{x\to0}\left(\frac{38.94x\left(.337-.05e^{38.94x}\right)}{\left(1-e^{38.94x}\right)}\right)$

$\int e^{xy^2}dx$

$\lim_{x\to0}\left(\frac{x^2}{\ln\left(x\right)}\right)$

$n^2+24n+144$

$\lim_{x\to1}\left(\frac{ln\left(1-x\right)-tan\left(7\right)}{x^2}\right)$

$\frac{\left(-3\right)^2+\left(-3\right)-2}{\left(-3\right)+2}$

$\frac{4x^{2}-3}{x+5}$