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4*x^2+x-(1/8) = 0
4*x^2+x-1/8 = 0
4*x^2+x-1/8 = 0
DELTA = 1^2-(-1/8*4*4)
DELTA = 3
DELTA > 0
x = (3^(1/2)-1)/(2*4) or x = (-3^(1/2)-1)/(2*4)
x = (3^(1/2)-1)/8 or x = (-(3^(1/2)+1))/8
x in { (-(3^(1/2)+1))/8, (3^(1/2)-1)/8 }
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