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v in (-oo:+oo)
v^3*((3*v^3+v^2+2*v)/10) = 0
(v^3*(3*v^3+v^2+2*v))/10 = 0
3*v^3+v^2+2*v = 0
v*(3*v^2+v+2) = 0
3*v^2+v+2 = 0
DELTA = 1^2-(2*3*4)
DELTA = -23
DELTA < 0
v = 0
(v*v^3)/10 = 0
( v )
v = 0
( v^3 )
1*v^3 = 0 // : 1
v^3 = 0
v = 0
v in { 0, 0 }
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