SOLUTION: If f(x)= x^2 + 3, g(x)=4x, the value of g(f(6)) is ?

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Question 571039: If f(x)= x^2 + 3, g(x)=4x, the value of g(f(6)) is ?
Found 2 solutions by nyc_function, richard1234:
Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
First find f(6).
f(6) = (6)^2 + 3

f(6) = 36 + 3

f(6) = 39

Now plug 39 into g(x).

g(x) = 4x

g(f(6)) = 4x

g(39) = 4(39)

The answer is 156.


Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
g(f(6)) means "g of f(6)," so find f(6).

f(6) = 6^2 + 3 = 39

So g(f(6)) = g(39) = 4*39 = 156