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Lisafominastar
@Lisafominastar
August 2022
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Решите пожалуйста!
Теоремой,обратной теореме Виета.
1) 0.6х+2х²=0
2)2х²-3х-2=0
3)х²+2х-4=0
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2407Alexa
1) 0,6х+2х²=0|÷2
х²+0,3х=0
х1+х2=-0,3
х1×х2=0
х1=0
х2=-0,3
2) 2х²-3х-2=0|÷2
х²-1,5х-1=0
х1+х2=(-(-1,5))
х1×х2=-1
х1=-0,5
х2=2
3) х²+2х-4=0
х1+х2=-2
х1×х2=-4
х1=(-1-√5)
х2=(-1+√5)
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Answers & Comments
х²+0,3х=0
х1+х2=-0,3
х1×х2=0
х1=0
х2=-0,3
2) 2х²-3х-2=0|÷2
х²-1,5х-1=0
х1+х2=(-(-1,5))
х1×х2=-1
х1=-0,5
х2=2
3) х²+2х-4=0
х1+х2=-2
х1×х2=-4
х1=(-1-√5)
х2=(-1+√5)