我想要因式分解GE所有公式,唔洗解法
如（a+b)^2
因式分解全部公式
2008-08-19 11:27 pm
回答 (2)
2008-08-22 6:18 am
✔ 最佳答案
(a+b)^2 = a^2 + 2ab + b^2(a-b)^2 = a^2 - 2ab + b^2
(a+b)(a-b) = a^2 - b^2
(a+b)^3 = a^3 + 3 a^2 b + 3ab^2 + b^3
(a-b)^3 = a^3 - 3a^2 b + 3ab^2 - b^3
a^3 + b^3 = (a+b) (a^2 - ab + b^2)
a^3 - b^3 = (a-b)(a^2 + ab + b^2)
參考: myself
2008-08-20 12:30 am
(a+b)(a-b)= a ^2 - b ^2
(a+b) ^2= a ^2 + 2ab + b ^2
(a-b)^2= a ^2 - 2ab + b ^2
ｘ^3+y^3= (x+y)(x^2 - xy + y^2)
x^3 - y^3=(x-y)(x^2+xy+y^2)
(a+b) ^2= a ^2 + 2ab + b ^2
(a-b)^2= a ^2 - 2ab + b ^2
ｘ^3+y^3= (x+y)(x^2 - xy + y^2)
x^3 - y^3=(x-y)(x^2+xy+y^2)
收錄日期: 2021-04-25 13:45:34
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https://hk.answers.yahoo.com/question/index?qid=20080819000051KK01663