Question

F(2x-1) = 4x + 1 maka f(3) berapa???
tolong jalannya ya

Answer 1

F(2x - 1) = 4x + 1    ; misal 2x - 1 = a
                                            2x = a + 1
                                              x = (1/2)(a + 1)
f(x) = 4(1/2)(a+1) + 1
      = 2(a + 1) + 1
      = 2a + 2 + 1
      = 2a + 3
f(x) = 2x + 1
f(3) = 2(3) + 1
      = 6 + 1
      = 7

Answer 2

F(2x - 1) = 4x + 1
untuk x = 2 maka
f(3) = 4(2) + 1 = 9

semoga membantu :)