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(2/12)*x^2+4*x+14*x+4 = 0
1/6*x^2+18*x+4 = 0
DELTA = 18^2-(1/6*4*4)
DELTA = 964/3
DELTA > 0
x = ((964/3)^(1/2)-18)/(1/6*2) or x = (-(964/3)^(1/2)-18)/(1/6*2)
x = 3*((964/3)^(1/2)-18) or x = -3*((964/3)^(1/2)+18)
x in { -3*((964/3)^(1/2)+18), 3*((964/3)^(1/2)-18) }
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