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1979aleksandr1997
@1979aleksandr1997
July 2022
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помогите найти сумму корней уравнения 4х(в квадрате)+3х-1=0
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fedya208
4x^2+3x-1>=0
4x^2+3x-1=0
D=9+4*4=25
x1=(-3+5)/8=1/4=0,25
x2=(-3-5)/8=-1
x1+x2=0,25-1=-0,75
Ответ: -0,75
0 votes
Thanks 1
Juliaa21
4x²+3x-1=0
D=3²-4*4*(-1)=9+16=25
-3+5 2 1
x1= _____ =____ = ____=0,25
8 8 4
-3-5
х2=________ =-8/8=-1
8
0,25+(-1)=0,25-1=-0,75
Ответ:-0,75
1 votes
Thanks 1
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Answers & Comments
4x^2+3x-1=0
D=9+4*4=25
x1=(-3+5)/8=1/4=0,25
x2=(-3-5)/8=-1
x1+x2=0,25-1=-0,75
Ответ: -0,75
D=3²-4*4*(-1)=9+16=25
-3+5 2 1
x1= _____ =____ = ____=0,25
8 8 4
-3-5
х2=________ =-8/8=-1
8
0,25+(-1)=0,25-1=-0,75
Ответ:-0,75