济南注水旗杆:初二代数!!!!!!!!!help~~~~~~~~~~~`

来源:百度文库 编辑:高校问答 时间:2024/05/06 05:44:21
因式分解m^2-n^2+n-1/4
答案+过程~~~谢哈~~~

m^2-n^2+n-1/4
=m^2-(n^2-n+1/4)
=m^2-(n-1/2)^2
=(m+n-1/2)(m-n+1/2)

m^2-n^2+n-1/4
=m^2 - (n - 1/2)^2
=(m + n - 1/2)(m - n + 1/2)

m^2-n^2+n-1/4
=m^2-(n^2-n+1/4)
=m^2-(n-1/2)^2
=(m-n+1/2)(m+n-1/2)