$3a^2b-2ab^2$

$\frac{d^2}{dx^2}\ln\:\left(\frac{\left(2x+5\right)\left(5x-2\right)}{\left(x+1\right)}\right)$

$\int_1^{\infty}\left(\frac{x+1}{\sqrt{x^2+2x}}\right)dx$

$2x\le4$

$-\left(2x-\frac{3x-1}{8}\right)$

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

$\frac{2.449489742783178+2\cdot8}{27}$