$$10x+4-3+8x+2$$

$$\lim_{x\to0}\left(\frac{3^x-2^x}{5x^2}\right)$$

$$2x+3y=35$$

$$\sqrt{x^2+15}=8$$

$$\frac{dy}{dx}=yln2+2^{\left(sinx\right)}\left(cosx-1\right)ln2$$

$$\lim_{x\to2}\left(\frac{x^3-4x^2+4x}{x^2-4x+4}\right)$$

$$\int_7^{\infty}\left(\frac{1}{1+x^2}\right)dx$$