Jika diketahui f (×-2) = ×2+3×-4,maka f(×) adalah

X-2 > 2

2 | 1. 3. -4
. | __2__10_____
1. 5. | 6 > sisa.
Maka jawabannya : X + 5

f(x-2) = x^2 + 3x - 4

=> f(x) = x^2
=>f(x-2) = (x-2)^2 = x^2 - 4x + 4
[x^2 + 3x - 4] - [x^2 - 4x + 4] = 7x - 8

=> f(x) = 7x
=> f(x-2) = 7×(x-2) = 7x - 14
[7x - 8] - [7x - 14] = 6

=>f(x) = 6

Jadi f(x) = x^2 + 7x + 6