Relax

Respuesta :

Answer:

[tex]x^{3} -13x^{} -12[/tex]

Step-by-step explanation:

(x+1) (x−4) (x+3)

= ((x+1)(x−4)) (x+3)

= ((x+1)(x−4)) (x)+((x+1)(x−4)) (3)

= [tex]x^{3} -3x^{2} -4x^{} +3x^{2} -9x^{} -12[/tex]

= [tex]x^{3} -13x^{} -12[/tex]