(1234567891)2-1234567890×1234567892

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/04 18:40:55
(1234567891)2-1234567890×1234567892(1234567891)2-1234567890×1234567892(1234567891)2-1234567890×12345

(1234567891)2-1234567890×1234567892
(1234567891)2-1234567890×1234567892

(1234567891)2-1234567890×1234567892
(1234567891)²-1234567890×1234567892
=1234567891²-(1234567891-1)×(1234567891+1)
=1234567891²-(1234567891²-1)
=1234567891²-1234567891²+1
=1