Respuesta :

Answer:

f(3) = 41

Step-by-step explanation:

f(3) = 5 + 4.3^2 = 5 + 36 = 41

Good evening

Answer:

41

Step-by-step explanation:

If f(x) = 5 + 4x²

in order to calculate f(3) we just substitute x by 3 in the expression above

  f(3) = 5 + 4(3)²

        =  5 + 4(9)

        = 5 + 36

        = 41

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