$f(x)=n$ with coefficients $\in RR$

Messaggioda TomSawyer » 05/03/2007, 11:17

Let $f$ be a polynomial with real coefficients such that for each positive integer $n$ the
equation $f(x) = n$ has at least one rational solution. Find $f$.
I don't have the proof of this problem, so I'd be curious to see it :wink:.
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TomSawyer
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