Question

El resultado que se obtiene al factorizar x2+6x+8 es: A. (x+ 2) (x+ 4) B. (x– 2) (x– 4) C. (y– 2) (2– y) D.(x+ 8) (x+ 1)​

Answer 1

Verified answer

Respuesta:

a) (x+2)(x+4)

Explicación paso a paso:

2x + 6x + 8 = 0

2(x + 3)^2 - (3)^2 = -8

(×+3)^2 = -8 + 9

|x+3| = 1 ➡️x2 = x+3 = -1 ➡️ x= -4

⬇️

x1 = x+3 = 1

x = 1 - 3

x = -2

(x+2)(x+4)