题目内容

化简:
原式,······················································ (4分)
,··························································· (6分)
.      (8分)

试题分析:运用整式的加减运算顺序计算:先去括号,再合并同类项.注意不要漏乘.
点评:解决此类题目的关键是熟记去括号法则,及熟练运用合并同类项的法则,是各地中考的常考点.
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网