Respuesta :

Hello from MrBillDoesMath!

Answer:  Choice B, 3 ( x + 9) (x+3)

Discussion:

Factor 3 from each term:':

3x^2+36x+81 = 3 (x^2 + 12x +27).

As 9+3 = 12 ans 9*3 = 27 the factorizaiton is

3 ( x + 9) (x+3)

which is choice B



Thank you,

MrB