$\int_{14}^{\infty}\left(\frac{7}{v^2-v}\right)dv$

$\tan\left(\arctan\left(\frac{y}{5}+c\right)\right)=tan\left(5x+c\right)$

$\int\frac{1}{x\left(x^2+3x+2\right)}dx$

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

$4n+4+1+3n$

$6r\left(r-1\right)\left(r-2\right)$

$\sqrt{18^2}$