SOLUTION: functions f and g are defined f(x)= 3x+5 and g(x) = x (squared) +1 so what is g(f(x))

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Question 247778: functions f and g are defined f(x)= 3x+5 and g(x) = x (squared) +1 so what is g(f(x))
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Replace x with f(x) in g(x).
g%28x%29=x%5E2%2B1
f%28x%29=3x%2B5
g%28f%28x%29%29=%283x%2B5%29%5E2%2B1=%289x%5E2%2B30x%2B25%29%2B1
g%28f%28x%29%29=9x%5E2%2B30x%2B26