$\frac{d}{dx}\left(x^4\left(x^2+1\right)^6\right)$

$mna+nab$

$9^2+2a+1$

$\left(425+726-215\right)-\left(125+16-31\right)+412$

$\left(x+1\right)\left(x^2-4\right)\left(x+2\right)$

$\int_2^{\sin\left(x\right)}\left(\ln\left(x^8\right)\right)dx$

$\lim_{z\to-2}\left(z^3\:+\:8\right)$