g(-2) jika f(x)=2x-3 dan (fog) (x) =(x-2) (3x+1)
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g(-2) jika f(x)=2x-3 dan (fog) (x) =(x-2) (3x+1)
1 Jawaban
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1. Jawaban Es1w1
f(x) = 2x - 3
fog(x) = 3x² - 5x - 2
f { g(x) } = 3x² -5x - 2
2. g(x) - 3 = 3x² - 5x - 2
2 g(x) = 3x² - 5x + 1
g(x) = 1/2 (3x² -5x + 1)
g(-2) = 1/2 { 3(-2)² - 5(-2) + 1}
g(-2) = 1/2 { 12 +10 +1 )
g(-2) = 1/2 (23)
g(-2) = 23/2