Question

quizz mtk

Fungsi (f. g)(x) = 8x2 + 8x. Jika f(x) = 4x, g(x) = ....
a. 'X-4
b. x + 2 X
C. X+4
d. 2x + 2 e. 4x + 4 L ​

no ngasal + pake cara -_
semangattttttttttttttt

Answer 1

Answer 2

Diketahui:
fg(x) = 8x² + 8x
--> fg(x) = 8x(x+1)
--> f(x) = 4x
Ditanya g(x)
g(x) = fg(x) ÷ f(x)
g(x) = 8x(x+1) ÷ 4x
g(x) = (8÷4)(x÷x)(x+1)
g(x) = 2(1)(x+1)
g(x) = 2(x+1)
sifat distributif
g(x) = 2x+2 (d)
Jawab: D.  2x+2