12345²-12344*12346=
来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/30 19:18:47
12345²-12344*12346=12345²-12344*12346=12345²-12344*12346=12345²-12344*12346=1234
12345²-12344*12346=
12345²-12344*12346=
12345²-12344*12346=
12345²-12344*12346=
12345²-(12345-1)*(12345+1)
=12345²-(12345²-1)
=12345²-12345²+1
=1