Respuesta :

Answer:

The answer would be x^2+4x-4

Step-by-step explanation:

You can solve this by plugging 4x+2 into (f+g). 4x+2 would equal f. x^2-6 would equal g. plugging them in gets you 4x+2+x^2-6. If we simplify it we would end up with x^2+4x-4