Question 886779
<pre>
          x=-2,   x=-1,   x=3,    x=4
        x+2=0,  x+1=0,  x-3=0,  x-4=0

f(x) =  (x+2)(x-1)(x-3)(x-4)

Multiply all that out and get

{{{"f(x)"}}}{{{""=""}}}{{{x^4-6x^3+3x^2+26x-24}}}

Edwin</pre>