Respuesta :

Answer:

f(x) + g(x) = x² – 3x + 24, with some assumptions on what is meant in the question.

Step-by-step explanation:

f(x) = x² – 3x 18   [I'll assume this is meant to be x²-3x +18]

g(x) = r = 6  [I don't understand this.  I'll assume simply that g(x) = 6]

f(x) + g(x) = x² – 3x + 18 + 6

f(x) + g(x) = x² – 3x + 24