$$\frac{x^3+2x+1}{x^2-x+3}$$

$$54+6,598$$

$$2004\cdot2002$$

$$\lim_{x\to0}\left(\frac{\tan\left(6x\right)}{\tan\left(2x\right)}\right)$$

$$\int_3^0\:9-x^2\:dx$$

$$\left(-13am^3+11a^2m^2+10am\right)$$

$$y^3-2$$