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题型:填空题 题类:常考题 难易度:困难
广西贵港市桂平市2018-2019学年七年级下学期数学期末考试试卷
(2+1)(22+1)(24+1)
=(2﹣1)(2+1)(22+1)(24+1)
=(22﹣1)(22+1)(24+1)
=(24﹣1)(24+1)
=28﹣1
化简:(3+1)(32+1)(34+1)(38+1)=.
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