Respuesta :

aayu0302

Answer:

C. x^2 + 6x + 9

Step-by-step explanation:

(x+3)^2

using formula (a+b)^2= a^2 + 2ab + b^2,

(x)^2 + 2(x)(3) +(3)^2

=> x^2 + 6x + 9

dredsetlhabetsi

Answer:

A

Step-by-step explanation:

(x)×2= 2x

(3)×2=6

x2 + 6....