$\int\frac{x^2+2x-1}{x^2+9}dx$

$\left|\left(-3\right)\cdot\left(+7\right)+\left(-2\right)\right|$

$\frac{1}{2}\left(-1\right)^3\left(2\right)\left(-2\right)+4\left(-1\right)\left(2\right)^2-\frac{\left(-1\right)\left(2\right)^2}{-2}$

$e^{\frac{1}{x-1}\ln\:\left(\frac{x}{2x-1}\right)}$

$\frac{1}{9}x^6y^4+\frac{2}{3}m^2x^3y^2+m^4$

$\sqrt{109}^2$

$\frac{dy}{dx}=y\left(xy^5+4\right)$