$(1$ point$)$

Find the general solution $to$ the differential equation

$y^{\text{'}}+3x^{2}y=x^3$

Use the variable $I={\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}{e}^{x^3}dx$ where $it$ occurs $in$ your answer.

$\frac{1}{e^x{?}^3}$