$$\sqrt{40x^4y^8}$$

$$\lim_{x\to-2}\left(\frac{x^3-8}{x^3+x^2+4}\right)$$

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

$$6x^2+11r-10=0$$

$$-8x^3-12x^2-6x-1$$

$$sin\left(sinx+5\right)=2-cos^2x$$