Question

sendo f(x)= 3x-2 e g(x)= 2x+1, determine:

a) f(g(x))

b) g(f(x))

c) f(f(x))

Answer 1

f(x)= 3x-2 e g(x)= 2x+1

f(g(x))=3(2x+1)=6x+3

b)g(f(x))

2.3x-2+1=6x-2+1=6x-1



c) f(f(x))=3.(3x-2)-2=6x-6-2=6x-8