Предмет: Алгебра, автор: mlxxxooo9

2х²+2х-4=0 через виета ​

Ответы

Автор ответа: arina5788
0
2х^2+2х-4=0 /2
х^2+х-2=0
х1+х2=-1
х1•х2=-2
х1=1
х2=-2
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