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12*x^4*y+18*x^3*y-((24/6)*x^2*y) = 0
12*x^4*y+18*x^3*y-4*x^2*y = 0
12*x^4*y+18*x^3*y-4*x^2*y = 0
2*x^2*y*(6*x^2+9*x-2) = 0
6*x^2+9*x-2 = 0
DELTA = 9^2-(-2*4*6)
DELTA = 129
DELTA > 0
x = (129^(1/2)-9)/(2*6) or x = (-129^(1/2)-9)/(2*6)
x = (129^(1/2)-9)/12 or x = (-(129^(1/2)+9))/12
2*x^2*y = 0
2*x^2*y = 0 // : 2*y
x^2 = 0
x = 0
x in { (-(129^(1/2)+9))/12, (129^(1/2)-9)/12, 0 }
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