试题 试卷
题型:单选题 题类:常考题 难易度:普通
平方差公式++++++++++
(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#}.
试题篮