University of Saskatchewan (Canada)
University of Saskatchewan: Factoring Polynomials
This site from the University of Saskatchewan provides an explanation of factoring by grouping, greatest common factor, perfect squares, and difference of squares. Higher degree polynomials factored as well. Some examples provided along...
University of Saskatchewan (Canada)
University of Saskatchewan: Factoring Polynomials Given One Root
Contains a few example problems on factoring polynomials with a given root.