SOLUTION: if f(x)=2x+1 and g(x)=x^2, find (g o f)(2)

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Question 65875: if f(x)=2x+1 and g(x)=x^2, find (g o f)(2)
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
Firstly, define [g o f].
g(f(x)) = (2x + 1)^2 = 4x^2 + 4x + 1
Now, plug in two.
4*4 + 4*2 + 1 = 16 + 8 + 1 = 25