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Question: how to reverse after expanding polynomial

Question:how to reverse after expanding polynomial

Christopher2222 5860 Maple
polynomial expand
July 26 2017
0

suppose I have

g := (x-4)^2+(y-6)^2-144:

e:=expand(g)

                     e := x^2+y^2-8*x-12*y-92

How do I get from the equation of e back to g?

                         
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