102x1252x1的精选

问题详情：化简多项式(2x+1)5-5(2x+1)4+10(2x+1)3-10(2x+1)2+5(2x+1)-1的结果是(  )A.(2x+2)5    B.2x5         C.(2x-1)5     D.32x5【回答】D知识点：计数原理题型：选择题...