$x^2+bx+cyax^2+bx+c$

$\lim_{x\to4}\left(\frac{\sqrt{x}-2}{ax+b}\right)$

$5\left(\frac{1}{5}\right)\left(\frac{750}{250}\right)$

$\left(\sqrt{6}+\sqrt{2}\right)\left(\sqrt{2}-\sqrt{6}\right)$

$\int_{-2}^6\left(3x\:+5\right)dx$

$y=\frac{1}{\left(2x^2+x\right)^3}$

$\left(1+3^{5x}\right)^2$