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mathew0304
@mathew0304
July 2022
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nafanya2014
Verified answer
У≠1, у≠-7
Применяем свойство пропорции
(2у-1)(у-1)=(у+7)(3у+4)
2у²-3у+1=3у²+25у+28
у²+28у+27=0
у=-1 у=-27
Ответ. -1; -27
1 votes
Thanks 1
alvardsaroyan
Verified answer
Y+7≠0⇒y≠-7
y-1≠0⇒y≠1
(2y-1)(y-1)=(3y+4)(y+7)
2y²-3y+1=3y²+25y+28
y²+28y+27=0
D/4=196-27=169
y₁=-14+13=-1
y₂=-14-13=-27
otvet -1;-27
0 votes
Thanks 1
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Answers & Comments
Verified answer
У≠1, у≠-7Применяем свойство пропорции
(2у-1)(у-1)=(у+7)(3у+4)
2у²-3у+1=3у²+25у+28
у²+28у+27=0
у=-1 у=-27
Ответ. -1; -27
Verified answer
Y+7≠0⇒y≠-7y-1≠0⇒y≠1
(2y-1)(y-1)=(3y+4)(y+7)
2y²-3y+1=3y²+25y+28
y²+28y+27=0
D/4=196-27=169
y₁=-14+13=-1
y₂=-14-13=-27
otvet -1;-27