齐鲁台刘爽生了个男孩:初二代数!!!!!!!!!help~~~~~~~~~~~`
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因式分解m^2-n^2+n-1/4
答案+过程~~~谢哈~~~
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)
HELP HELP HELP!!! 初二代数~~~
初二代数!!!!!!!!!help~~~~~~~~~~~`
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