Using the remainder theorem, which is not a factor of [tex]x^4-3x^3-17x^2+39x-20?[/tex]

A. x-1
B. x+4
C. x-5
D. x+1

Respuesta :

Answer:

D.

[tex]x + 1[/tex]

Step-by-step explanation:

[tex]x^4-3x^3-17x^2+39x-20 = \\ = (x - 5) {(x - 1)}^{2} (x + 4)[/tex]