$3.x+50=5.x$

$\lim_{n\to\infty}\left(\frac{1}{n^{\frac{1}{3}}}\right)$

$\int\ln\left(x+\right)dx$

$\int_{\infty}^0\left(2-x\right)^{\frac{-3}{2}}dx$

$\frac{4x^2-12x+5}{x-1}$

$4x^2-12x+9\:=\:\left(4x-3\right)^2$

$\frac{sin^2t}{\cos\left(t\right)}-\sec\left(t\right)-\cos\left(t\right)$