$-9x-6x-2x$

$\lim_{x\to0}\left(\frac{8x^2}{x}\right)$

$\left(2x\:-\:5\right)^3$

$a^10-2a^5+1$

$\int\left(-5x^2+2x\right)^3\left(2-10x\right)dx$

$\left(3a^2-\frac{2}{5}b^3\right)^2$

$\int_{\frac{2\pi}{3}}^{\frac{4\pi}{3}}\left(\frac{1}{2}\left(1+2\cos\left(\theta\:\right)^2\right)\right)d\theta\:$