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(x-y)(x+y)=x^2-y^2 (x-y)(x^2+xy+y^2)=x^3-y^3 (x-y

分类: 作业答案 • 2022-05-27 19:15:45
问题描述：

(x-y)(x+y)=x^2-y^2 (x-y)(x^2+xy+y^2)=x^3-y^3 (x-y
(x-y)(x+y)=x^2-y^2
(x-y)(x^2+xy+y^2)=x^3-y^3
(x-y)(x^3+x^2y+xy^2+y^3)=x^4-y^4
(x-y)(_____)=x^5-y^5

答

x^4+x^3y+x^2y^2+xy^3+y^4

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