Question 5
(BUL 5) Solve the system
$$\begin{cases}x^2+x-1=y,\\y^2+y-1=z,\\z^2+z-1=x.\end{cases}$$
$$\begin{cases}x^2+x-1=y,\\y^2+y-1=z,\\z^2+z-1=x.\end{cases}$$
IMO 1967 - Longlist Problems Question 5
IMO Shortlist · IMO 1967 - Longlist Problems
IMO Shortlist · IMO 1967 - Longlist Problems