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5xy - 3,5y2 - 2xy +1,3y2 - xy.

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Ответ:

Zagadochnaya

25.12.2020 05:47

( 1,3y^2 - 3,5y^2) + (5xy - 2xy - xy)=-2.2y^2 + 2xy

-2.2y^2 + 2xy

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