Resolve the following rational expression into partial fractions.
`(2x^(2) + 5x - 11)/(x^(2) + 2x - 3)`

Resolve the following rational expression into partial fractions. (x^(2) + x + 1)/(x^(2) - 5x + 6)

Resolve the following rational expression into partial fractions. (x^(3) + 2x + 1)/(x^(2) + 5x + 6)

Resolve the following rational expression into partial fractions. (1)/(x^(4) - 1)

Resolve the following rational expression into partial fractions. (x)/((x^(2) + 1)(x - 1)(x + 2))

Resolve the following rational expression into partial fractions. (6x^(2) - x + 1)/(x^(3) + x^(2) + x + 1)