FP1 - Roots of Polynomial Equations

I did this topic a couple of months ago, didn't really grasp the finer nuances of it though, and the OCR book is pretty dry/hard to read for me on this topic so I was wondering if someone had a set of notes they could kindly upload?

I can't find anything, my teacher said that there were no notes on this topic on the Intergral FM website.

For those who have already done the OCR FP1 exam, what were the questions on this topic like?