$ln\left(\frac{x^3\sqrt{x-1}}{3x-3}\right)$

$s^2-6s$

$\int ln\:x^3dx$

$1+2\sec\:^2\left(a\right)\tan\:^2\left(a\right)-\sec\:^4\left(a\right)$

$\lim_{x\to0}\left(\frac{2\:sen\left(2x\right)}{x}\right)$

$\sqrt{\frac{12x^{3}y}{25}}$

$\left(\frac{7}{9}m^2+\frac{1}{5}n^4\right)^2$