b2a4的知识精选

计算:(a-b)(a+b)(a2+b2)(a4-b4)的结果是(  )A.a8+2a4b4+b8       ...
问题详情:计算:(a-b)(a+b)(a2+b2)(a4-b4)的结果是(  )A.a8+2a4b4+b8       B.a8-2a4b4+b8        C.a8+b8                   D.a8-b8【回答】B【详解】根据平方差公式可直接求解,即原式=()()()=()2=a8-2a4...
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