题目内容

{ab-[ 3a2b-(4ab2ab)-4a2b]}+3a2b

                 {ab-[ 3a2b-(4ab2ab)-4a2b]}+3a2b

                = {ab-[ 3a2b-4ab2ab-4a2b]}+3a2b

                = {ab-[ -a2b-4ab2ab]}+3a2b

                =aba2b+4ab2ab+3a2b

                 = 4a2b+4ab2ab

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