$\lim_{x\to\infty}\left(\left(\frac{1}{3}\right)^{\log_{\frac{1}{5}}\left(x\right)}\right)$

$6n-2=-8$

$2\sqrt{3}\cos\left(x\right)\:=\:\sin\left(4x\right)$

$\frac{a^2-a-2}{a-1}$

$\left(\frac{2}{3}m^2+7\right)\left(\frac{2}{3}m^2-7\right)$

$sin\:^2.\:cos\:w$

$\frac{2x^2+8x-3}{6x^2-7x+2}$