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SK2006
@SK2006
July 2022
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2x^2-5x+2=0.Решите уравнение
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Zenkaeva718214
Ответ:
Д=5²-4*2*2=9
х1,2=5±3/4
х1=2
х2=1/2
1 votes
Thanks 1
SK2006
без дискриминанта
kaminskaaelmira20
D=b^2-4ac
D=25-16=9
x1=-b-корень из D =5-3
—-—————- ——=0,5
2a. 4
x2=-b+корень из D
—————-= 5+3
2a. ——- =2
4
1 votes
Thanks 0
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Answers & Comments
Ответ:
Д=5²-4*2*2=9
х1,2=5±3/4
х1=2
х2=1/2
D=25-16=9
x1=-b-корень из D =5-3
—-—————- ——=0,5
2a. 4
x2=-b+корень из D
—————-= 5+3
2a. ——- =2
4