$\lim_{x\to\infty}\left(\frac{ln\left(2x+8\right)}{ln\left(6x+7\right)+5}\right)$

$y'+2y=y^2$

$\left(\frac{-2a^{2}}{b^{5}}\right)^{2}$

$\lim_{x\to0}\left(\frac{\sin\left(x\right)}{\ln\left(x+1\right)\cos\left(4x\right)}\right)$

$7.2\:-\:1.811$

$\int_0^x\left(\frac{1-e^{-t^2}}{t^2}\right)dx$

$\frac{dy}{dx}=x^2+5+3x$