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Автор - Nemoreggis

1)xy²-by²-ax+ab+y²-a
2)x²y+x+xy²+y+2xy+2
3)x²-xy+x-xy²+y³-y²
Решите пожалуйстаааа​

Ответ

Проверено экспертом

Автор - Namib

Ответ:

Объяснение:

1)

xy^{2}-by^{2}-ax+ab+y^{2}-a=y^{2}(x-b)-a(x-b)+y^{2}-a=\=(y^{2}-a)(x-b)+y^{2}-a=(y^{2}-a)(x-b+1)

2)

x^{2} y+x+xy^{2}+y+2xy+2=xy(x+y)+(x+y)+2xy+2=\=(xy+1)(x+y)+2(xy+1)=(xy+1)(x+y+2)

3)

x^{2} -xy+x-xy^{2}+y^{3}-y^{2}=x(x-y^{2})-y(x-y^{2})+(x-y^{2})=\=(x-y+1)(x-y^{2})

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