jika (fog) (x) = 4x kuadrat + 2x + 1 dan g (x) = 2x -1 , maka f (x) adalah..
Matematika
Ali23111
Pertanyaan
jika (fog) (x) = 4x kuadrat + 2x + 1 dan g (x) = 2x -1 , maka f (x) adalah..
1 Jawaban
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1. Jawaban keruasriki
f(g(x)) = 4x^2 + 2x + 1
f(2x - 1) = 4x^2 + 2x + 1
f(2x - 1) = 4x^2 - 4x + 1 + 6x - 3 + 3
f(2x - 1) = (2x - 1)^2 + 3(2x - 1) + 3
f(x) = x^2 + 3x + 3