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MathNet 2016-part-07 — 182 problems (EN–VI) Question 111

Math Olympiad Vault · MathNet 2016-part-07 — 182 problems (EN–VI)

Question 111

Let $p(x) = x^{2} - x + 1$. Let $\alpha$ be a root of $p(p(p(p(x))))$. Find the value of
$$
(p(\alpha)-1)\, p(\alpha)\, p(p(\alpha))\, p(p(p(\alpha)))
$$