Jika g(x) = x + 3 fog (x) = 2x²+7x+20 Maka f(x) =
Matematika
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Pertanyaan
Jika g(x) = x + 3
fog (x) = 2x²+7x+20
Maka f(x) =
fog (x) = 2x²+7x+20
Maka f(x) =
1 Jawaban
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1. Jawaban ahreumlim
Materi : Fungsi Komposisi
g(x) = x + 3
fog (x) = 2x² + 7x + 20
f(g(x)) = 2x² + 7x + 20
f(x + 3) = 2x² + 7x + 20
f(x) = 2(x - 3)² + 7(x - 3) + 20
f(x) = 2(x² - 6x + 9) + 7x - 21 + 20
f(x) = 2x² - 12x + 18 + 7x - 1
f(x) = 2x²- 5x + 17