Address only right side of a functions equation
Let's say I have a Quaratic Function called c with y = 2*(x-1)² + 5
I wan't to extract "2*(x-1)² + 5" as text and put it equal to something else.
RightSide[c] unfortunately doesn't work. I'd rather not put the text string together one by one, because I don't want to end up with 1*(x-0)² + 0.
How can I do it?