Respuesta :

Step-by-step explanation:

= 4x² + 12x + 9

= 4x² + 6x + 6x + 9

= 2x(2x + 3) + 3(2x + 3)

= (2x + 3)(2x + 3)

= (2x + 3)²

Hi1315

Answer:

[tex](2x + 3)(2x + 3)[/tex]

Step-by-step explanation:

Hey there,

[tex]4 {x}^{2} + 1 2x + 9 \\ 4 {x}^{2} + 6x + 6x + 9 \\ 2x(2x + 3) + 3(2x + 3) \\ (2x + 3)(2x + 3)[/tex]

Hope this helps you.

Let me know if you have any other questions :-)