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v in (-oo:+oo)
v^2-((28/2)*v^2)-(3*v)-98 = 0
v^2-14*v^2-3*v-98 = 0
-13*v^2-3*v-98 = 0
DELTA = (-3)^2-(-98*(-13)*4)
DELTA = -5087
DELTA < 0
v belongs to the empty set
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