化简:(x-1)5+5(x-1)4+10(x-1)3+10(x-1)2+5(x-1)= 国语站 题库 3.24W 大中小设置文本大小 问题详情:化简:(x-1)5+5(x-1)4+10(x-1)3+10(x-1)2+5(x-1)=________.【回答】x5-1知识点:计数原理题型:填空题 TAG标签:化简 5x 10x #