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9*x^2+(1/29)*x = 0
9*x^2+1/29*x = 0
DELTA = (1/29)^2-(0*4*9)
DELTA = 1/841
DELTA > 0
x = ((1/841)^(1/2)-1/29)/(2*9) or x = (-(1/841)^(1/2)-1/29)/(2*9)
x = 0 or x = -1/261
x in { -1/261, 0 }
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