Question

DADOS F(X)=X-1 E G(X)=5X-6,DETERMINE;
F(G(X)) G(F(X))
F(F(X))
G(G(X))

Answer 1

f(g(x))= 5x-6-1
5x-7=0
x=7/5

g(f(x))=5(x-1)-6
5x-5-6=0
x=11/5

f(f(x))= x-1-1
x-1-1=0
x=2

g(g(x))= 5(5x-6)-6
25x-30-6=0
x=36/25

Acho que é isso, rs

Answer 2

 F(X)=X-1 E G(X)=5X-6F(G(X))= 5x-6-1 ==> 5x - 7

G(F(X))= 5(x-1)-6 ==> 5x-5-6==> 5x - 11

F(F(X))= x-1-1 ==> x - 2

G(G(X)) = 5(x-6)-6 ==> 25x-30-6==> 25x - 36