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Dec 15, 2015 at 19:17 history edited Jasper CC BY-SA 3.0
Responded to revised question.
Dec 15, 2015 at 18:49 comment added Behzad No, that's not the point. I don't use "simplification" as a mechanical and by-the-law process. The question is "Why $x^2+3xy^2+4xy+7x^2y \neq x^3-3xy+9x^2y^3$?" (for example!). Why can't we do "anything" to this polynomial?
Dec 15, 2015 at 18:25 history edited Jasper CC BY-SA 3.0
added 100 characters in body
Dec 15, 2015 at 18:17 history answered Jasper CC BY-SA 3.0