计算:2006×20052006-2005×20062006
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 19:14:45
![计算:2006×20052006-2005×20062006](/uploads/image/z/1261625-41-5.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A2006%C3%9720052006-2005%C3%9720062006)
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计算:2006×20052006-2005×20062006
计算:2006×20052006-2005×20062006
计算:2006×20052006-2005×20062006
设a=2005
则2006×20052006-2005×20062006
=(a+1)(1000a+a+1)-a[1000(a+1)+a+1]
=(a+1)(1001a+1)-a(1001a+10001)
=1001a²+1002a+1-1001a²-1001a
=a+1
=2005+1
=2006
答案:2006