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Ответ дан
mmmmmm29
16-8y+y^2-y^2-y=16-9y=16-9*(-1/9)=18

Ответ

Ответ дан
sompan
(4-y)^2-y(y+1) = 16-8y+y^2-y^2-y=16-9y=16-9*1/9= 16-1=15

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