有关2a2b2b4的精选大全

把a4-2a2b2+b4分解因式,结果是                               A.a2...
问题详情:把a4-2a2b2+b4分解因式,结果是                               A.a2(a2-2b2)+b4                 B.(a2-b2)2            C.(a-b)4      ...
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