$\frac{d}{dx}\left(\frac{x\sqrt{x^2+8}}{\left(x+3\right)^{\frac{4}{3}}}\right)$

$\frac{x\cos\left(x\right)\cdot\sec\left(x\right)}{\sin\left(x\right)+\sec\left(x\right)\cdot\cos\left(x\right)}$

$\left(x^2+4\right)dy=\left(2x+8xy\right)dx$

$b^m\cdot b^n$

$1+e^{-3x}y'=0$

$\frac{dy}{dx}=\frac{x}{190-x}$

$\left(3x^2-5x+1\right)+\left(x^2-7w-3\right)$