$\left(2w-8\right)^2$

$-a^3-25a^2+24a^3-12a+9$

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

$-2^2\cdot3-2\cdot3^2+-2\cdot3+3$

$\left(3x+2\right)\left(x+3\right)$

$\int\left(40-x\right)\cdot sin\left(\frac{nx}{40}\right)dx$

$\cos\left(\frac{11\pi}{12}\right)como\:\cos\left(\frac{\pi}{4}\right)$