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Ответ

Ответ дан
taisasnitko

x²+3/5·x=5x-x²/2  × 10

10x²+6x=50x-5x²

15x²-44x=0

x(15x-44)=0⇒ x=0 или 15x=44 ⇒x1=0,x2=44/15.

(при х=0; х=44/ 15--значения выражений равны) согласно заявленному условию.


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