Respuesta :

Answer:

Step-by-step explanation:

I have no idea

Answer:

3(x+3)^2=12

Step-by-step explanation:

3x^2-18x+15

(3x^2+18x)+15

3(x^2+6x)+15

3(x^2+6x+9)+15-27

3(x+3)^2-12

3(x+3)^2=12

Hope this helps!

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