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12*x^6-(((36*x^2)/(-6))*x^6) = 0
6*x^8+12*x^6 = 0
6*x^8+12*x^6 = 0
6*x^6*(x^2+2) = 0
1*x^2 = -2 // : 1
x^2 = -2
6*x^6 = 0
6*x^6 = 0 // : 6
x^6 = 0
x = 0
x = 0
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