$$I = \int_{0}^{2} x^3 - 4 x^2 + 5 x - 3 \, dx$$

1. Approximate $I$ with the Trapezoid Rule and $n = 4$.
   $I \approx \;$
2. Approximate $I$ with Simpson’s Rule and $n = 4$.
   $I \approx \;$
3. Find the exact value of the integral.
   $I = \;$