$\int\frac{4x^2-54x+134}{\left(x-1\right)\left(x+5\right)\left(x+3\right)}dx$

$45.\:56$

$55^2n^3+110m^2n^3x-220m^2y^3$

$\int_{\frac{\pi}{3}}^{\frac{\pi}{2}}\left(\frac{\left(sinx\right)}{\sqrt{1-2cosx}}\right)dx$

$\lim_{x\to0}\left(\frac{-2}{-senx+x}\right)$

$9a\sqrt{29ab}-7a\sqrt{29ab}-5a\sqrt{725ab}$

$\log\left(\frac{x-4}{x+2}\right)$