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If t^4 + t^{-4} = 2023, then determine t^3 + t^{-3}

Source: 2023 OLCOMA Costa Rica National Olympiad, Final Round, 3.5

March 20, 2024
algebraPolynomials

Problem Statement

Let tt be a positive real number such that t4+t4=2023t^4 + t^{-4} = 2023. Determine the value of t3+t3t^3 + t^{-3} in the form of aba\sqrt b, where aa and bb are positive integers.