$\frac{1}{3}x\:+\:\frac{3}{4}\:+\frac{2}{3}x\:-\:\frac{1}{4}\:-\:\frac{2}{3}x$

$\left(2y^3\right)\left(2y+5\right)$

$\int\frac{6x^2+1}{x^2\left(x^2-1\right)^2}dx$

$4x^4-36y^4m$

$4x^2-12x+8$

$\frac{-\frac{2}{\pi}sen\left(\frac{\pi}{2}n\right)}{n}+\frac{\frac{\pi}{1}sen\left(\frac{\pi}{2}n\right)}{n}$

$\int5\left(2+3\tan\left(x\right)^4\right)\sec^2\left(x\right)dx$