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D( v )
v = 0
v = 0
v = 0
v in (-oo:0) U (0:+oo)
5*v-((5/55)*v)-((25/22)/v) = 0
5*v+(-1/11)*v+(-25/22)*v^-1 = 0
54/11*v^1-25/22*v^-1 = 0
(54/11*v^2-25/22*v^0)/(v^1) = 0 // * v^2
v^1*(54/11*v^2-25/22*v^0) = 0
v^1
(54/11)*v^2-25/22 = 0
(54/11)*v^2-25/22 = 0
DELTA = 0^2-(4*(54/11)*(-25/22))
DELTA = 2700/121
DELTA > 0
v = ((2700/121)^(1/2)+0)/(2*(54/11)) or v = (0-(2700/121)^(1/2))/(2*(54/11))
v = 11/108*(2700/121)^(1/2) or v = 11/108*(2700/121)^(1/2)
v in { 11/108*(2700/121)^(1/2), 11/108*(2700/121)^(1/2)}
v in { 11/108*(2700/121)^(1/2), 11/108*(2700/121)^(1/2) }
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