Respuesta :

Answer:

Step-by-step explanation:

x² + 5x + 4 =0

Product =4

Sum = 5

So, factors = 4*1

x² + 1x + 4x + 4*1 = 0

x*(x + 1) + 4*(x + 1) = 0

(x + 1)(x + 4) = 0