Question

F(x-2) = 4x + 5 . Hasil dari f(3x) ??

Answer 1

F(x-2) = 4 ( x-2 ) + 5
         = 4x - 8 + 5
         = 4x - 3
      3 = 4x
       3/4 = x

f(3x) = 4 (3x) + 5
        = 12x + 5
        = 12 (3/4) + 5
         = 9 + 5 
          = 14

semoga membantu,, semoga bener jwbnnya :D

Answer 2

F(x-2) = 4(x-2) + 5
        = 4x -8 + 5
  -4x = -3
 x = 3/4.

f(3x) = 4(3x) + 5
       = 12x + 5
       = 12(3/4) + 5
       = 9 + 5
       = 14

Maaf ya kalo salah.. Cuma mau bantu aja :D