what is the constant term in
I see you have graph paper.
You must be plotting something
In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
You need to calculate the coefficent where the z term is (z to the power zero).
That will be
So 9C3 x 2^6
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei