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v in (-oo:+oo)
16*v^3-(((12*v^2)/2)*v^2) = 0
16*v^3-6*v^4 = 0
16*v^3-6*v^4 = 0
2*v^3*(8-3*v) = 0
8-3*v = 0 // - 8
-3*v = -8 // : -3
v = -8/(-3)
v = 8/3
2*v^3 = 0
2*v^3 = 0 // : 2
v^3 = 0
v = 0
v in { 8/3, 0 }
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