$\left[x+\frac{2}{3}\right]\left[x-\frac{1}{6}\right]$

$\tan u\:\csc^2u-\cot\:u\:\sec^2\:u=0$

$\left(5w+8\right)\left(5w-8\right)$

$\frac{d}{dx}\left(\left(x^4-y^4\right)^8=ln\left(2x^3+y^5\right)\right)$

$\left(x^2-81\right)^2$

$32=x^2+x$

$\int_0^{\infty}\left(\frac{12x+16}{x^2+4x+4}\right)dx$