Respuesta :

Answer:

(y + z)(y + 4z)

Step-by-step explanation:

[tex] {y}^{2} + 5zy + 4 {z}^{2} \\ = {y}^{2} + zy + 4zy + 4 {z}^{2} \\ = y(y + z) + 4z(y + z) \\ = (y + z)(y + 4z)[/tex]