$$\int\left(\frac{x^3}{5-x^2}\right)dx$$

$$y\left(\left(\frac{x}{1+x}\right)^5\right)$$

$$36x^2-6x+1$$

$$\frac{x^4-2x^3-5x^2+9}{x+2}$$

$$\int\left(10\left(10x-14\right)^2\right)dx$$

$$x^4-40x^2=0$$

$$\sqrt{2\left(13\right)}\left(6\right)$$