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MathNet 2009-part-01 — 175 problems (EN–VI) Question 42

Math Olympiad Vault · MathNet 2009-part-01 — 175 problems (EN–VI)

Question 42

The sequence $(f_i)_{i=0}^{\infty}$ is defined by $f_0 = f_1 = 1$ and $f_{i+2} = f_{i+1} + f_i$ ($i \ge 0$).
Find all real solutions of the equation
$$
x^{2010} = f_{2009}x + f_{2008}.
$$