jika (fog) (x) = x²-1 dan g(x) = x +3 maka f(x)=
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jika (fog) (x) = x²-1 dan g(x) = x +3 maka f(x)=
1 Jawaban
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1. Jawaban yessyv
f(g(x)) = x² - 1
f(x+3) = x² - 1
misal x+3 = p => x = p-3
f(p) = (p-3)² - 1
= p² - 6p + 9 - 1
= p² - 6p + 8
f(x) = x² - 6x + 8