mohon kakk, buat besokkk

Pake caranya? Aku cuma bisa jawab no. 7 dan 8

7. (g•f)(x) = g(fx)
(g•f)(x) = √x+2
(g•f)(x) = √(x^2+x+6)+2
(g•f)(x) = √x^2+x+8 (B)

8. (g•f)(x) = g(fx)
(g•f)(x) = 3x^2-x+5
(g•f)(x) = 3(2x-1)^2-(2x-1)+5
(g•f)(x) = 3(4x^2-4x+1)-2x+1+5
(g•f)(x) = 12x^2 - 12x + 3 - 2x + 6
(g•f)(x) = 12x^2 - 14x + 9 (C)


semoga membantu yaa:)