$\frac{d}{dx}\left(\ln\left(y\right)+\ln\left(x\right)=2x-y-1\right)$

$\int8x\left(2x^2+3\right)^3dx$

$\frac{0^4}{4}$

$\int x\left(5x+9\right)^7dx$

$\lim_{x\to0}\left(\frac{x^3-2x^2+1}{3x^2-6x}\right)$

$\log\left(x^3\right)+2\log\left(x^8\right)-3\log\left(x^3\right)$

$2\left(5m\right)\left(3\right)$