Respuesta :

mhanifa

Answer:

Given

  • f(x) = 3x + 2
  • g(x) = (x + 3) / (2x - 10)

#1

  • g · f(x) =
  • g(f(x)) =
  • (3x + 2 + 3)/ (2(3x + 2) - 10) =
  • (3x + 5) / (6x - 6)

#2

  • f · g(x) =
  • f(g(x)) =
  • 3[(3x + 2) / (2x - 10)] + 2 =
  • (9x + 6) / (2x - 10) + 2 =
  • (9x + 6 + 4x - 20)/ (2x - 10) =
  • (13x - 14) / (2x - 10)