what is partial factoring and how do you do it? Please help

Since this is not my area of expertise, I searched Google under the key words "partial factoring" to get these possible sources:

http://www.angelfire.com/pro/grade_ten_math/Unit4/partial.html
http://forums.wolfram.com/mathgroup/archive/1992/Oct/msg00064.html
http://www.kredytbank.pl/Business_Banking/Financing_Operations_and_Investment_Projects/Factoring/
http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel1/24/3183/00103005.pdf?arnumber=103005

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.