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((4*u^4*v^5)/20)*v^5*x^6-(12*v^2) = 0
((4*u^4*v^5)/20)*v^5*x^6-12*v^2 = 0
1/5*u^4*v^10*x^6 = -(-12*v^2) // : 1/5*u^4*v^10
x^6 = 60*u^-4*v^-8
x^6 = 60*u^-4*v^-8 // ^ 1/6
abs(x) = 60^(1/6)*u^(-2/3)*v^(-4/3)
x = 60^(1/6)*u^(-2/3)*v^(-4/3) or x = -(60^(1/6)*u^(-2/3)*v^(-4/3))
x in { 60^(1/6)*u^(-2/3)*v^(-4/3), -(60^(1/6)*u^(-2/3)*v^(-4/3)) }
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