$12mn-8a^2+14+5a^2-7mn$

$x^2+2x-14=0$

$4\left(cd^3\right)\left(c^{\frac{1}{5}}\right)\left(d^3\right)$

$\left(a^2+ab\right)^3$

$\left(a^4-\sqrt{b}\right)\left(a^4+\sqrt{b}\right)$

$y\frac{dy}{dx}=1\:,\:y\left(0\right)=2$

$\int\:\frac{\left(-2-3x\right)}{1+3x+3x^2}dx$