Question

considere f(x)=x3 e g(x)=x-1
A) f(g(×))=
B) g(f(x))=
C) f(g(-1))=

Answer 1

A)f(g(x))=f(x-1)=(x-1)^3=x^3 - 3x^2 + 3x - 1

B)g(f(x))=g(x^3)=x^3 - 1

C)f(g(-1))=f(-2)=(-2)^3=-8