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Dzёshiko
@Dzёshiko
August 2022
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Решите пожалуйста (через дискриминант).
-x(4x+1)=(x-2)(x+2)
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Jasurkhan
-4x^2-x=x^2-4
-4x^2-x-x^2+4=0
-5x^2-x+4=0
5x^2+x-4=0
D=1+80=81
x1=0,8
x2=-1
2 votes
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Answers & Comments
-4x^2-x-x^2+4=0
-5x^2-x+4=0
5x^2+x-4=0
D=1+80=81
x1=0,8
x2=-1