$5x^4+17x^3-14x^2-10x-8\left(x+4\right)$

$\frac{3}{\left(x-1\right)\left(x+1\right)}=\:\frac{2}{x-1}-\frac{2}{x}$

$\lim_{x\to0}\left(\frac{sinx-x}{sinx+x}\right)$

$8a+5-5a-3$

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

$\int\frac{w\left(w^3-4\right)}{\sqrt{w^5-10w^2+8}}dx$

$\int_{-2}^1\left(\frac{2}{x^2}\right)dx$