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2*x^6-((2*x^6)/4)+4*x^4 = 0
(-1/2)*x^6+2*x^6+4*x^4 = 0
3/2*x^6+4*x^4 = 0
x^4*(3/2*x^2+4) = 0
3/2*x^2 = -4 // : 3/2
x^2 = -8/3
x^4 = 0
1*x^4 = 0 // : 1
x^4 = 0
x = 0
x = 0
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