$\frac{5x^3+2x^2-3x}{x-2}$

$\left(1-x\right)^{cos\left(\frac{3.141592653589}{2}\right)}$

$\left(\frac{1}{2}p-\frac{2}{3}q\right)\left(\frac{3}{4}p-\frac{1}{2}q\right)$

$2-\sin\left(2\right)=4\sin\left(2\right)$

$\frac{4+n^3}{2+n}$

$\lim_{x\to\frac{\pi}{2}}\left(x-\frac{\pi}{2}\right)^{\cos\left(x\right)}$

$20+\left(-3.05\right)+\left(-9.5\right)$