Respuesta :

Answer:

i think i am not sure

i am soo sorry if i gave it wrong but i think its A

Step-by-step explanation:

Answer:

3x+2

Step-by-step explanation:

9x^2 + 12x +4

This is a perfect square trinomal

(3x)^2 + 12x +2^2 = 3x*2   doubled = 6x*2 = 12x

The middle term is twice the ends

a^2 +2ab+b^2 = (a+b)^2

(3x)^2 + 12x +2^2  = (3x+2) ^2

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