2008/12346的平方-12345×12347
问题描述：
2008/12346的平方-12345×12347
列式计算
答
2008/(12346²-12345×12347)
=2008/(12346²-(12346-1)×(12346+1))
=2008/(12346²-12346²+1)
=2008/1
=2008