$\int\left(x^6+\frac{1}{\sqrt{x}}\right)\cdot\ln\left(x\right)dx$

$-x^5-6x-4$

$\arccos\left(\frac{2\sqrt{2}}{9}\right)$

$\sqrt[6]{745-16}$

$-4\left(2-3-1\right)+2\left(8-5\right)+3\left(4-5\right)$

$\:8\:-\:\left[4\:+\:\left(3\:-\:6\right)+\left(\:-12\:+\:5\right)+3\right]\:\:$

$log\left(\frac{x^3}{y}\right)^2$