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关于轮换式的因式分解题第一题:a^2(b+c)+b^2(c+a)+c^2(a+b)—(a^3+b^3
提问人：最需找题发布时间：1970-01-01
关于轮换式的因式分解题第一题:a^2(b+c)+b^2(c+a)+c^2(a+b)—(a^3+b^3+c^3)-2abc=第二题：(a+b+c)^3-a^3-b^3-c^3=第三题：(x-y)^5+(y-Z)^5+(z-x)^5=要求：回答几道都没有关系,但是一定要有过程,而且做之前最好写好题好,我真的很急,答得好重重有赏,
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