$\sqrt[2]{10^8}$

$\frac{\tan\left(72\right)-\tan\left(12\right)}{1+\tan\left(72\right)\tan\left(12\right)}$

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

$2\cdot\left(-8\right)-3\cdot\left(-7\right)-4\cdot\left(-3\right)$

$3-7\left(5-6\right)\left(\left(-3\left(-2\right)+\left(-4\right)+8\:6\:\left(3\right)-2\right)\right)$

$\left(x+5\right)\left(3x-5\right)$

$\lim_{x\to\infty}\left(\frac{\ln\left(x\right)+x}{x^2+2}\right)$