Question

f(x) = 2x + 5 e g(x) = x- 4. O valor de f(g(3)) é:

a)-6
b)-5
c)9
d)7
e)3

Answer 1

F(g(3)=2.(3-4)+5
F(g(3)=-2+5
F(g(3)=3

Answer 2

Bom dia Cadum 

f(x) = 2x + 5
g(x) = x - 4

g(3) = 3 - 4 = -1

f(g(3)) = f(-1) = -2 + 5 = 3 (E)

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