Respuesta :
Answer:
9
Step-by-step explanation:
x^2+6x+9
Is perfect since
(x+3)^2 is perfect square
Identity Is (x+y)^2=x^2+2xy+y^2
Answer:
9
Step-by-step explanation:
x^2+6x+9
Is perfect since
(x+3)^2 is perfect square
Identity Is (x+y)^2=x^2+2xy+y^2