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

$\left(3x^2y^6\right)^2\left(4x^2y^{10}\right)^2$

$\lim_{x\to2}\frac{\sqrt{x}-\sqrt{2}}{x}$

$\lim_{x\to0}\left(\frac{\cos\left(\left(\frac{\pi}{2}\right)+x\right)}{x}\right)$

$\frac{x}{6}+11=23$

$\left(7a^4bc^3\right)\left(7a^4bc^3+cd^5\right)$

$45^{\circ\:\:}\cos\:\left(25^{\circ\:\:}\right)+\frac{\sqrt{2}\sin\:\left(25^{\circ\:\:}\right)}{2}$