Respuesta :

Answer:

f(x) = [tex]x^{3} - x^{2} - 10x -8[/tex]

Step-by-step explanation:

All you have to do is multiply (x + 1)(x + 2)(x - 4)

You should get [tex]x^{3} - x^{2} - 10x -8[/tex]

So,  f(x) = [tex]x^{3} - x^{2} - 10x -8[/tex]