Question 429998
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi
The factor theorem states that a polynomial f(x) has a factor (x &#8722; k) 
if and only if f(k) = 0
f(x)=(x-4)(x+2)(x-1)
(x-4)(x+2)(x-1) = 0
(x-4)= 0  x = 4
(x+2)= 0  x = -2
(x-1)= 0  x = 1
these x-values are the "Zeros" of this polynomial