Which best describes the relationship between (x + 1) and the polynomial -3x3 - 2x2 + 1?

A. (x + 1) is not a factor.
B. It is impossible to tell if (x + 1) is a factor.
C. (x + 1) is a factor.
D. If (x + 1) isn't a factor, then x = -1 could be.

Question

Which best describes the relationship between (x + 1) and the polynomial -3x3 - 2x2 + 1? 

A. 	(x + 1) is not a factor.
  		B. 	It is impossible to tell if (x + 1) is a factor.
  		C. 	(x + 1) is a factor.
  		D. 	If (x + 1) isn't a factor, then x = -1 could be.

anonymous · Answer

by plugging x=-1 in  -3x3 - 2x2 + 1 we have 
-3(-1)^3 -2(-1)^2 +1 =3-2+1=2<>0  
hence A. (x + 1) is not a factor.