Respuesta :

Hrishii

Answer:

(x + 7)(x + 8)

Step-by-step explanation:

[tex] {x}^{2} + 15x + 56 \\ = {x}^{2} + 8x + 7x + 56 \\ = {x}(x + 8) + 7(x + 8) \\ = \huge \red{ \boxed{ (x + 8)(x + 7)}}[/tex]