сократить дробь (x+y)2 - (x-y)2 _________________________ Х. Created by ProstoAlina14. matematika-ru

сократить дробь (x+y)2 - (x-y)2 ________________________

ProstoAlina14 @ProstoAlina14

June 2022 2 34 Report

сократить дробь

(x+y)2 - (x-y)2

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katik85

$\frac{(x+y)^{2}-(x-y)^{2}}{x}=\frac{x^{2}+2xy+y^{2}-(x^{2}-2xy+y^{2})}{x}=\frac{x^{2}+2xy+y^{2}-x^{2}+2xy-y^{2}}{x}=\frac{(x^{2}-x^{2})+(2xy+2xy)+(y^{2}-y^{2})}{x}=\frac{4xy}{x}=4y$

18 votes Thanks 24

Svet1ana

Verified answer

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

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x^2+2xy+y^2-x^2+2xy-y^2

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4xy

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Ответ: 4у

18 votes Thanks 35

Answers & Comments

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