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rayazareva
@rayazareva
August 2022
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Решить уравнения
х^2+х-56=0
И
10х^2-9х+2=0
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WhiteNeko
1)D=1^2-4*-56=1+224=225
x1=-1+15/2=14/2=7
x2=-1-15/2=-16/2=-8
2) D=-9^2-4*10*2=81-80=1
x1=9+1/20=10/20=1/2
x2=9-1/20=8/20=2/5
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Answers & Comments
x1=-1+15/2=14/2=7
x2=-1-15/2=-16/2=-8
2) D=-9^2-4*10*2=81-80=1
x1=9+1/20=10/20=1/2
x2=9-1/20=8/20=2/5