Copy of Fundamental Theorem of Algebra looking great!

This is a simple alteration of my earlier GGtube 'Exploring the FTA'.[br]Check it out here: http://www.geogebratube.org/student/m5858
Can you modify 'Exploring the FTA' (according to the suggestions there) to achieve this diagram?
– DinoAAA, Maurice OReilly

Information: Copy of Fundamental Theorem of Algebra looking great!