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Ответ

Проверено экспертом

Автор - maksimcat

Ответ:


Пошаговое объяснение:

Ответ на фото////////////

Ответ

Автор - anna732011

Ответ:

x1=7 x2=4

Пошаговое объяснение:

(2x^2+11x-75-3x^2+48)/x^-16=0

x^2-11x+28=0

D=121-112=9

x1/2= (11(+-)3)/2

x1=7

x2=4

__

II

__  

100-75=25%

100-70=20%

25-20=5%

3000-(3000*0.05)=2850

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