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v in (-oo:+oo)
v^2-((40/4)*v^2)-(3*v)-(24*v)-64 = 0
v^2-10*v^2-3*v-24*v-64 = 0
-9*v^2-27*v-64 = 0
DELTA = (-27)^2-(-64*(-9)*4)
DELTA = -1575
DELTA < 0
v belongs to the empty set
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