Jika f(x) = x + 4 dan gof(x) = 2x2 + 6x – 5, maka g(-1)=
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Pertanyaan
Jika f(x) = x + 4 dan gof(x) = 2x2 + 6x – 5, maka g(-1)=
1 Jawaban
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1. Jawaban DB45
f(x) = x + 4
gof(x)= 2x² + 6x - 5
g(x +4) = 2x² + 6x - 5
g(-1)= ....
x+4 = - 1
x = -5
g(-1) = 2(-5)² + 6(-5) - 5
g(-1) = 50 - 30 - 5
g(-1) = 15