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Demin3224
@Demin3224
July 2022
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sedinalana
Verified answer
X≠0,4
2(x-1)+3x=x(x-0,4)
x²-0,4x-2x+2-3x=0
x²-5,4x+2=0
D=29,16-8=21,16
x1=(5,4-4,6)/2=0,4 не удов усл
x2=(5,4+4,6)/2=5
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Answers & Comments
Verified answer
X≠0,42(x-1)+3x=x(x-0,4)
x²-0,4x-2x+2-3x=0
x²-5,4x+2=0
D=29,16-8=21,16
x1=(5,4-4,6)/2=0,4 не удов усл
x2=(5,4+4,6)/2=5