SOLUTION: If f(x) = 2x + 1 and g(x) = x^2, what is f ○ g? What is g ○ f?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: If f(x) = 2x + 1 and g(x) = x^2, what is f ○ g? What is g ○ f?      Log On


   



Question 886581: If f(x) = 2x + 1 and g(x) = x^2, what is f ○ g? What is g ○ f?
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = 2x + 1 and g(x) = x^2
fog = f(g(x)) = 2x^2 +1
gof = g(f(x)) = (2x +1)^2 = 4x^2 +4x +1