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x in (-oo:+oo)
x^2-((20/6)*v)-(9*x)-96 = 0
(-10/3)*v+x^2-9*x-96 = 0
x^2-10/3*v-9*x-96 = 0
DELTA = (-9)^2-(1*4*(-10/3*v-96))
DELTA = 81-4*(-10/3*v-96)
81-4*(-10/3*v-96) = 0
81-4*(-10/3*v-96) = 0
40/3*v+465 = 0
40/3*v+465 = 0
40/3*v+465 = 0 // - 465
40/3*v = -465 // : 40/3
v = -465/40/3
v = -279/8
DELTA = 0 <=> t_1 = -279/8
x = 9/(1*2) i v = -279/8
x = 9/2 i v = -279/8
( x = ((81-4*(-10/3*v-96))^(1/2)+9)/(1*2) or x = (9-(81-4*(-10/3*v-96))^(1/2))/(1*2) ) i v > -279/8
( x = ((81-4*(-10/3*v-96))^(1/2)+9)/2 or x = (9-(81-4*(-10/3*v-96))^(1/2))/2 ) i v > -279/8
v+279/8 > 0
v+279/8 > 0 // - 279/8
v > -279/8
x in { 9/2, ((81-4*(-10/3*v-96))^(1/2)+9)/2, (9-(81-4*(-10/3*v-96))^(1/2))/2 }
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