$\lim_{x\to0}\left(1+\left(\frac{1}{x}\right)\right)^x$

$\left(\sqrt{x}+2y\right)\left(x-y\right)$

$y'+2xy-e^{-x^2}=0$

$\frac{1}{4}\log_c\left(x\right)+2\log_c\left(y\right)-3\log_c\left(x\right)$

$4x^3y-51x^3y$

$\lim_{x\to\infty}\left(\frac{6^x}{8^x}\right)$

$2x^2+7x-10x+5$