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    A Very Nice Maths Olympiad Question |  How to solve (4 + \sqrt{5}^x+ (4-\sqrt{5})^x | Algebra |πŸ€”

    A Very Nice Maths Olympiad Question | How to solve (4 + \sqrt{5}^x+ (4-\sqrt{5})^x | Algebra |πŸ€”

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