$2^{19\:+\:2^{20}}$

$\frac{di}{dt}+\frac{10i}{2t-5}=10$

$\sqrt{10x}2\sqrt{5x}$

$\left(x-6-y\right)\left(x-6+y\right)$

$4y^3\left(\frac{dy}{dx}\right)=3sqrt\left(x\right)$

$\left(a^{x+2}-3\right)x\left(a^{x+2}+3\right)$

$11m^2-12mn^2+10-\left(6m^3+10m^2n-5mn+13\right)$