$\frac{\left(10a^331a^2b+ab^2+35b^3\right)}{2a-5b}$

$1.4\cdot8$

$m^3y+m^3d$

$\sqrt{\left(2000+4\right)\left(2000+2\right)+1}$

$\lim_{x\to1}\left(\frac{x^4+5x^3+6x^2}{\:x^2\left(x+1\right)-4\left(x+1\right)}\right)$

$\left(2a^3-3a^2b+4ab^2-2b^3\right)\cdot\left(3a^2+4ab-5b^2\right)$

$53\left(-25\right)\left(4\right)$