Respuesta :

Answer:

the side length is 8x + 6

Step-by-step explanation:

  [tex]64x^{2}+96x+36[/tex]

[tex]=(8x)^{2}+96x+6^2[/tex]

[tex]=\left( 8x\right)^{2} +2\times 8x\times 6+6^2[/tex]

[tex]=\left( 8x+6\right)^{2}[/tex]