Jika (f o g)(x) = x²-1 dan g(x) = x + 3 maka f(x) = ...
Matematika
Ichannisazhr
Pertanyaan
Jika (f o g)(x) = x²-1 dan g(x) = x + 3 maka f(x) = ...
1 Jawaban
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1. Jawaban andiazzahra949
(f o g)(x) = x^2-1
f (x+3) = (x+3)^2 -1
=(x+3)(x+3)-1
=(x^2+6x+9) -1
= x^2+6x+9-1
=x^2+6x+8