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MathNet 2016-part-04 — 184 problems (EN–VI) Question 183

Math Olympiad Vault · MathNet 2016-part-04 — 184 problems (EN–VI)

Question 183

Given that the polynomial $P(x) = x^{5} - x^{2} + 1$ has $5$ roots $r_{1}, r_{2}, r_{3}, r_{4}, r_{5}$. Find the value of the product
$$
Q(r_{1}) Q(r_{2}) Q(r_{3}) Q(r_{4}) Q(r_{5}),
$$
where $Q(x) = x^{2} + 1$.