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TR-MO-R1 2021 Problem 11

    aa ve bb gerçel sayılar olmak üzere,

    x4−x3+(a+b−2)x2+(b−2a)x+abx^4 - x^3 + (a+b-2)x^2 + (b-2a)x + ab

    polinomunun 4 farklı gerçel kökü varsa, 4a+b4a+b toplamı 516,712,76,178\dfrac{5}{16}, \dfrac{7}{12}, \dfrac{7}{6}, \dfrac{17}{8} ve 52\dfrac{5}{2} değerlerinden kaç tanesini alabilir?

    a) 1 b) 2 c) 3 d) 4 e) 5

    Official text Turkish Mathematical Olympiad, first round 2021 official paper, page 6. Quoted with source.

    A model read this text from the scan of the paper by OCR, with vision/claude@2.1.318 (claude-opus-5-5). No person has checked it against the paper yet.

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