$\frac{dy}{dx}=-2y-4$

$2m^3-6n^2+5n^2+3m$

$\frac{2}{5}\:.\:\left(10\right)$

$98\cdot\frac{1}{2}+9$

$\left|\left(30+4\right)+\left(\left(-15\right)\cdot4-3\right)\right|$

$2x\left(4x^3-x^2+2x\right)$

$\frac{dy}{dt}\left(y=\left(t+4\right)\left(t+5\right)\left(t+6\right)\right)$