$\ln\left(x+5\right)=\ln\left(x-1\right)-\ln\left(x+1\right)$

$-5n+2\left(8+2n\right)$

$\left(2.2v^3w^2\right)-\left(12.3v^3w^2\right)$

$\frac{25x^2}{5x}$

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

$\frac{m^4}{m^2}-\frac{4}{2}$

$\:\int_3^{4-x^2}\:\frac{x}{\sqrt{y}}dy$