A、b为正整数 a²+b²被ab-1整除,求证a²+b²=5(ab-1),这题咋用韦达跳跃做? 知乎 Template




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tomskia、b为正整数 a²+b²被ab-1整除,求证a²+b²=5(ab-1),这题咋用韦达跳跃做? 知乎 coloring