12345678911234567891-12345678901234567892=?

来源：学生作业帮助网编辑：六六作业网时间：2024/12/26 22:24:23

1234567891*1234567891-1234567890*1234567892=?1234567891*1234567891-1234567890*1234567892=?1234567891

1234567891*1234567891-1234567890*1234567892=?
1234567891*1234567891-1234567890*1234567892=?

1234567891*1234567891-1234567890*1234567892=?

1234567891*1234567891-1234567890*1234567892
=1234567891²-(1234567891-1)(1234567891+1)
=1234567891²-1234567891²+1
=1

设1234567891=x，
则式子转化为x*x-（x-1）*（x+1）=1

设n=1234567891
则原式 n^2-(n-1)*(n+1)=n^2-(n^2-1)=1

1234567891*1234567891-1234567890+1234567892=? 1234567891*1234567891-1234567890*1234567892=? 全对者给50财富123456789-----------------------------------------------------------------------------------------------------------1234567891（的平方,上面有个小2）—1234567890x1234567892上面-----是分数线还有好多题是六年 1234567891*1234567891-1234567890*1234567892=?讲清原因 123456789 123456789, 1234567890/1234567891-1234567890×1234567892 (1234567891)2-1234567890×1234567892 123456789+123456789*123456789/123456789-123456789*123456789/123456789-123456789=? 123456789+123456789 123456789+123456789-123456789+1 123456789/123456789+123456789=? 问一道简算题1234567891*1234567891-1234567890*1234567890 123456789*123456789/123456789-123456789+123456789=? 123456789+123456789+123456789+123456789+123456789= 123456789÷123456789×123456789= 问123456789-123456789除以123456789+123456789=? 123456789+123456789+123456789+123456799-123456789=?