Respuesta :

altavistard

Answer:

23

Step-by-step explanation:

Subtract the function f(x) from the function g(x):

g(x)= 6x

- f(x)=4 - x^2

---------------------

(g-f)(x) = 6x - 4 + x^2

Now replace x with the given value 3:

(g - f)(3) = 6(3) - 4 + (3)^2

              = 18    -4   + 9 = 23

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