因式分解m^2-n^2+2n-1

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 00:50:35
因式分解m^2-n^2+2n-1
x){:{=O;^,_ggmkhT[RΆ^ [PH(OPYLP3" FB$b! F.X~qAb6`v Y~O'.Hf1N f!f

因式分解m^2-n^2+2n-1
因式分解m^2-n^2+2n-1

因式分解m^2-n^2+2n-1
m^2-n^2+2n-1
=m^2-(n^2-2n+1)
=m^2-(n-1)^2
=[m+(n-1)][m-(n-1)]
=(m+n-1)(m-n+1)

m^2-n^2+2n-1
=m^2-(n^2-2n+1)
=m^2-(n-1)^2
=(m+n-1)(m-n+1)