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如何分解因式2x⁵+2x+2?按照x降幂排列，缺什么我们添什么。
如何分解因式2x⁵+2x+2?都会先提公因式2，接下来该怎么办呢？按照x降幂排列，缺什么我们添什么，考察添项法分解因式
初中数学竞赛题：因式分解题型大全45/121
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