

1,
[tex]\int (2x-x^{2})^{2}dx[/tex]
2,
[tex]\int \frac{3x^{3}+x^{2}-4x+2}{x}dx[/tex]
3,
[tex]\int (\frac{2x+3}{x^{2}})^{2}dx[/tex]
[tex]\int (2x-x^{2})^{2}dx[/tex]
2,
[tex]\int \frac{3x^{3}+x^{2}-4x+2}{x}dx[/tex]
3,
[tex]\int (\frac{2x+3}{x^{2}})^{2}dx[/tex]