Question 4521
f(x)=x^2                  g(x)=2x+1

A.) g(f(x))= 2(x^2)+1               (g o f)(x)=2x^2+1

B.) x^2(2x+1)     2x^3+x^2

C.) x^2+2x+1

D.) x^2-2x+1