试题 试卷
题型:单选题 题类:常考题 难易度:普通
2015-2016学年浙江省绍兴市树人中学七年级下学期期中数学试卷
(1)(a+b)2
(2)a2﹣6ab+b2的值.
(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)={#blank#}1{#/blank#}.
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