$\log_{2x}\left(x\right)+\log_{8x}\left(x\right)=0$

$\left(\frac{ab}{7a^4b^5}\right)$

$\frac{d}{dx}\left(y^2+y=\sin\left(2x\right)\right)$

$\left(\frac{dy}{dx}+3y+5=0\right)$

$-50-\left(-40\right)$

$\lim_{x\to0}\frac{\left(1-\cos\left(x\right)\right)\sin\left(\frac{1}{x}\right)}{x}$

$\int\:4^{x^2}2xdx$