$$\frac{1}{4}m^2\cdot4$$

$$\sqrt{\frac{125}{5}}$$

$$\left(3x+y\right)\left(3x^2-y\right)$$

$$\frac{3}{4}\left(6x-9\right)-\left(6x+4\right)-\frac{7}{2}\le4x\frac{5x+3}{6}+\frac{5}{8}$$

$$\lim_{x\to e}\left(\ln\left(e\right)\right)^{\frac{1}{x-e}}$$

$$\lim_{x\to\frac{\pi}{2}}\left(sin\:4x\right)$$

$$\left(4mn+\frac{1}{8}\right)^3$$