f(x)=5x²-3x+7 dan g(x)=x+2 fungsi komposisi (fog) (x)
Matematika
shhandyhuzindraelz
Pertanyaan
f(x)=5x²-3x+7 dan g(x)=x+2 fungsi komposisi (fog) (x)
1 Jawaban
-
1. Jawaban Erinda120101
(fog) (x) = f(g(x))
= f(x+2)
= 5(x+2)² -3(x+2) +7
= 5(x+2)(x+2) -3x-6+7
= 5(x²+4x+4) -3x+1
= 5x²+20x+20-3x+1
= 5x²+17x+21