$\left(e^2+4\right)y'=y$

$\frac{dy}{y}=\frac{4}{1+x}dx$

$4\left(5+2\left(5\cdot6-27\right)\right)$

$\int\left(\frac{1}{\left(21-0.57q\right)\left(15-0.25q\right)}\right)dq$

$sin\left(arcsin\left(0.2\right)\right)$

$-4e-1$

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