$\int\left(e^{\frac{x}{y}}\right)dx$

$\int\left(x^5-2x^4\right)^6\left(5x^4-8x^3\right)dx$

$\frac{dy}{dx}=\frac{y}{\left(x+2\right)}$

$\left(x^4+y\right)^2$

$\left(-15\right)\::\:\left(-1\right)$

$\int_0^4\left(4\left(1-x^2\right)-\left(1-x^2\right)\right)dx$

$\left(-5\right)\cdot3+\left(-2\right)\cdot\left(-6\right)$