(m+3)次方+(m-3)次方
thx!!!
多項式!!好易嫁!!
2006-11-29 4:33 am
回答 (2)
2006-11-29 5:15 am
(m+3)^2+(m-3)^2
=m^2+6m+9+m^2-6m+9
=2m^2+18
=m^2+6m+9+m^2-6m+9
=2m^2+18
2006-11-29 4:56 am
(m+3)^2+(m-3)^2
=(m^2+6m+9)+(m^2-6m-9)
=2m^2
2006-11-28 20:58:24 補充：
sorry it have something wrong !!It must :-=(m^2+6m+9)+(m^2-6m+9)=2m^2+18That is the correct answer
=(m^2+6m+9)+(m^2-6m-9)
=2m^2
2006-11-28 20:58:24 補充：
sorry it have something wrong !!It must :-=(m^2+6m+9)+(m^2-6m+9)=2m^2+18That is the correct answer
參考: me
收錄日期: 2021-04-23 23:28:16
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https://hk.answers.yahoo.com/question/index?qid=20061128000051KK03926