First determine the x-intercepts of the polynomial.
C
Practice makes perfect
Let's first determine the x-intercepts of the polynomial.
The graph of the polynomial crosses the x-axis at (-2,0), (-1,0), and (2,0). With this, we can write three factors for the polynomial.
x+2, x+1, x-2
Therefore, x-1 is not a factor of the polynomial. The correct option is C.