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TR-MO-R1 2009 Problem 31

    ∣x3+3x2−33x−3∣≥2x2|x^3 + 3x^2 - 33x - 3| \geq 2x^2 eşitsizliğini, ∣x∣≥n|x| \geq n koşulunu sağlayan her xx gerçel sayısı için doğru kılan nn tam sayısının alabileceği en küçük değer nedir?

    a) 9 b) 8 c) 7 d) 6 e) 5

    Official text Turkish Mathematical Olympiad, first round 2009 official paper, page 9. Quoted with source.

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