Integral of $$$\left(- 4 x^{3} + x^{2}\right) e^{x}$$$

The calculator will find the integral/antiderivative of $$$\left(- 4 x^{3} + x^{2}\right) e^{x}$$$, with steps shown.

Find $$$\int \left(- 4 x^{3} + x^{2}\right) e^{x}\, dx$$$.