(gof)(x) =4x^2+ 4x dan g(x) = x^2 -1 maka f(x-2)=.....?
Matematika
madepitri02
Pertanyaan
(gof)(x) =4x^2+ 4x dan g(x) = x^2 -1 maka f(x-2)=.....?
1 Jawaban
-
1. Jawaban sigitbudikurnip4v1jp
g(f(x)) = 4x^2 + 4x
(f(x))^2 - 1 = 4x^2 + 4x
(f(x))^2 = 4x^2 + 4x + 1
(f(x))^2 = (2x + 1)^2
f(x) = 2x - 1
f(x - 2) = 2(x - 1) - 1
f(x - 2) = 2x - 3