Integration - Definite Integral

Evaluate each definite integral.

1. \(\displaystyle\displaystyle\int_{0}^{3} x(x^{3}-2 x^{2}+3) \mathrm{d} x\)
2. \(\displaystyle\displaystyle\int_{2}^{4} x^{2}(x-1)^{2} \mathrm{d} x\)
3. \(\displaystyle\displaystyle\int_{1}^{5}\left(\frac{x^{4}-3 x}{x^{2}}\right) \mathrm{d} x\)
4. \(\displaystyle\displaystyle\int_{3}^{7}\left(\frac{\sqrt{x}+4}{\sqrt{x}}\right) \mathrm{d} x\)