Respuesta :

Simplifying
4x2 + 8xy + 4y2

Reorder the terms:
8xy + 4x2 + 4y2

Factor out the Greatest Common Factor (GCF), '4'.
4(2xy + x2 + y2)
 
Factor a trinomial.
4((x + y)(x + y))

Final result:
4(x + y)(x + y)