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

$$\frac{d}{dx}\left(\left(3\:-\:x\right)\left(8\:-\:x\right)\right)$$

$$36\cdot36$$

$$x\frac{4}{3}x-3$$

$$\left(2m\:+y\right)^3$$

$$4-\left(2a+3\right)+\left(4a+5\right)$$