Ответ:
(7-у)²-y(y+3)=(7+1/17)²+1/17(-1/17+3)=50
49+y²-14y-y²-3y= 49 -17y= 49 -17×(-1/17)=50
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Ответ:
(7-у)²-y(y+3)=(7+1/17)²+1/17(-1/17+3)=50
Ответ:
49+y²-14y-y²-3y= 49 -17y= 49 -17×(-1/17)=50