$\left(3a^22b\right)^3$

$\frac{d^5y}{dx^5}=0$

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

$2x^2+12x+11$

$\frac{1}{25}+\frac{25x^4}{36}-\frac{y^4}{16}$

$\left(\sqrt{3}\sqrt{x}-\sqrt{2}\sqrt{y}\right)\left(\sqrt{3}\sqrt{x}-3\sqrt{2}\sqrt{y}\right)$

$\left(2r^2+1\right)\left(r^3-7\right)$