$\int\frac{x^3+2x+1}{2x+1}dx$

$-500q+60q^2$

$\frac{4\left(-2\right)+6\left(-2\right)\left(-3\right)}{-2^2-3}$

$16x^{10}-28x^7+49x^4$

$\left(3x^{2+2y^2}\right)\cdot dx+\left(4xy+2y\right)\cdot dy=0$

$g\left(x\right)\:=4x^2\left(3x^5\right)$

$\frac{dy}{dx}=\frac{2sin\left(x\right)}{1-y}$