$\left(2\cdot x\cdot y-e^{2y}\right)\cdot dx+\left(x^2-2\cdot x\cdot e^{2y}-y\right)\cdot dy=0$

$\left(-1^3\right)-5\cdot\left(-1^2\right)-11$

$\int\left(\frac{x^2+4}{\left(x^2+2\right)\left(x-3\right)}\right)dx$

$x^2\:+\:28x\:+\:196\:=\:$

$\int ae^xdx$

$\frac{r}{5}-1>2$

$-4x-1x-8$