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x in (-oo:+oo)
0.0000026 = (x^2)/0.1-x // - (x^2)/0.1-x
x-((x^2)/0.1)+0.0000026 = 0
x-10*x^2+0.0000026 = 0
x-10*x^2+0.0000026 = 0
DELTA = 1^2-(-10*0.0000026*4)
DELTA = 1.000104
DELTA > 0
x = (1.000104^(1/2)-1)/(-10*2) or x = (-1.000104^(1/2)-1)/(-10*2)
x = (1.000104^(1/2)-1)/(-20) or x = (1.000104^(1/2)+1)/20
x in { (1.000104^(1/2)-1)/(-20), (1.000104^(1/2)+1)/20 }
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