math
posted by Faith .
Describe a method you can use to shorten the list of possible rational zeros when using the rational zero theorem? I know how to do the problems, I just don't know how to shorten that method. Please help me.

at wikipedia,
http://en.wikipedia.org/wiki/Rational_root_theorem
about 2/3 of the way down the page there's a discussion on shortening the list of rational roots, by substituting in x=(r+t) for x where r is not one of the roots.