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32*x^6-(64*x^4)+((40*x^2)/(-8))*x^2 = 0
32*x^6-64*x^4+((40*x^2)/(-8))*x^2 = 0
32*x^6-69*x^4 = 0
x^4*(32*x^2-69) = 0
32*x^2 = 69 // : 32
x^2 = 69/32
x^2 = 69/32 // ^ 1/2
abs(x) = (69/32)^(1/2)
x = (69/32)^(1/2) or x = -(69/32)^(1/2)
x^4 = 0
1*x^4 = 0 // : 1
x^4 = 0
x = 0
x in { (69/32)^(1/2), -(69/32)^(1/2), 0 }
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