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Desa11
30.09.2020 07:08
Алгебра
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Спрости вираз (х-3)у квадраті-(х-1)(х+4)+(х-2)(х+2)​

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Jenya19885
Jenya19885
4,4(17 оценок)
БЕРИ:

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Спрости вираз (х-3)у квадраті-(х-1)(х+4)+(х-2)(х+2)​
nosok666
nosok666
4,5(42 оценок)
Х²-2х-4=0 д²= в²-4ас=(-2²)-4*1*(-4)=20 х1,2=-в_+√д/2а х1=2-√20/2=1-√5 х2=2+√20/2=1+√5

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