حلّل (3*x + 5)/((x + 1)(x + 2)) إلى كسور جزئية.

  • 2/(x + 1) + 1/(x + 2)
  • 2/(x + 2) – 1/(x + 1)
  • 1/(x + 1) + 2/(x + 2)
  • 3/(x + 1)