Question 3
(BUL 1) Find all polynomials $f(x)$ with real coefficients for which
$$f(x)f(2x^2)=f(2x^3+x).$$
$$f(x)f(2x^2)=f(2x^3+x).$$
IMO 1979 - Shortlisted problems Question 3
IMO Shortlist · IMO 1979 - Shortlisted problems
IMO Shortlist · IMO 1979 - Shortlisted problems