m^2+m+()+()-1=3m^2-2m-1帮帮忙o(>﹏

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/15 21:58:34
m^2+m+()+()-1=3m^2-2m-1帮帮忙o(>﹏m^2+m+()+()-1=3m^2-2m-1帮帮忙o(>﹏m^2+m+()+()-1=3m^2-2m-1帮帮忙o(>﹏()+()=(3m&

m^2+m+()+()-1=3m^2-2m-1帮帮忙o(>﹏
m^2+m+()+()-1=3m^2-2m-1
帮帮忙o(>﹏<)o……

m^2+m+()+()-1=3m^2-2m-1帮帮忙o(>﹏
()+()=(3m²-2m-1)-(m²+m-1)
=(3m²-m²)+(﹣2m-m)
=(2m²)+(﹣3m)