SamuelRSmith on 07 November 2008
Factor theorem? Input values -4 to 4 (excluding zero) into the function. If the answer comnes up with a zero, then you have one of the possible answers.
Then divide the function by the factor, getting the rest of the factors should be easy from then on in.
Chances are one of the factors are between -4 and 4, so this sounds like a good place to start.
