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muhasan111
@muhasan111
April 2022
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нужна помощь помогите пожалуйста
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Unknown12345678
Ответ:
1.(x+y)^2=x^2+2xy+y^2
2.(x^2+xy+y^2)(xx-y)=x^3-y^3
3.(-x-y)^2=x^2+2xy+y^2
4.x^2-y^2=(x-y)(x+y)
5.y^2-x^2=(y-x)(y+x)
6.(k+m)^3=k^3+3k^m+3km^2+m^3
7.x^3-y^3=(x-y)(x^2+xy+y^2)
8.k^m+2km+m^2=(k+m)^2
9.x^2+2xy+y^2=(x+y)^2
10.-(x+y)^2=-x^2-2xy-y^2
11.(k-m)(k+m)=k^2-m^2
12.x^3-3x^2y+3xy^2-y^3=(x-y)^3
13.(-y+x)^2=x^2-2xy+y^2
14.(x-y)(x^2+xy-y^2)=x^3-2xy^2+y^3
15.x^2+y^2+z^2+2xy+2xz+2yz=(x+y+z)^2
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Answers & Comments
Ответ:
1.(x+y)^2=x^2+2xy+y^2
2.(x^2+xy+y^2)(xx-y)=x^3-y^3
3.(-x-y)^2=x^2+2xy+y^2
4.x^2-y^2=(x-y)(x+y)
5.y^2-x^2=(y-x)(y+x)
6.(k+m)^3=k^3+3k^m+3km^2+m^3
7.x^3-y^3=(x-y)(x^2+xy+y^2)
8.k^m+2km+m^2=(k+m)^2
9.x^2+2xy+y^2=(x+y)^2
10.-(x+y)^2=-x^2-2xy-y^2
11.(k-m)(k+m)=k^2-m^2
12.x^3-3x^2y+3xy^2-y^3=(x-y)^3
13.(-y+x)^2=x^2-2xy+y^2
14.(x-y)(x^2+xy-y^2)=x^3-2xy^2+y^3
15.x^2+y^2+z^2+2xy+2xz+2yz=(x+y+z)^2