$\sqrt{324}$

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

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

$\lim_{x\to0}\left(\frac{x^2}{1-3\cos\left(x\right)}\right)$

$\left(-5b^4\right)\left(9a^5b\right)\left(-2ab\right)\left(-5a^3y\right)$

$-3\left(2-0\right)+6$

$\sqrt[4]{a\sqrt{a}}$