Say I have a polynomial (over a ring) x^4+x^2+1. I want to change variables t=x^2 so it becomes t^2+t+1, and if possible rename back to x^2+x+1. How do I do that?
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Say I have a polynomial (over a ring) x^4+x^2+1. I want to change variables t=x^2 so it becomes t^2+t+1, and if possible rename back to x^2+x+1. How do I do that?
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