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x^2*y^2*((12*x^3*y^4-(6*x^2*y^2))/6) = 0
x^2*y^2*((12*x^3*y^4-6*x^2*y^2)/6) = 0
(x^2*y^2*(12*x^3*y^4-6*x^2*y^2))/6 = 0
12*x^3*y^4-6*x^2*y^2 = 0
6*x^2*y^2*(2*x*y^2-1) = 0
2*x*y^2-1 = 0 // + 1
2*x*y^2 = 1 // : 2*y^2
x = 1/(2*y^2)
6*x^2*y^2*(x-1/2*y^-2) = 0
(6*x^2*x^2*y^2*y^2*(x-1/2*y^-2))/6 = 0
( 6*x^2*y^2 )
6*x^2*y^2 = 0 // : 6*y^2
x^2 = 0
x = 0
( x-1/2*y^-2 )
x-1/2*y^-2 = 0 // + -1/2*y^-2
x = -(-1/2*y^-2)
x = 1/2*y^-2
( x^2*y^2 )
x^2*y^2 = 0 // : y^2
x^2 = 0
x = 0
x in { 0, 1/2*y^-2, 0 }
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