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t in (-oo:+oo)
((9*t^1)/2)*(10-(8*t)) = 6-3*t // - 6-3*t
((9*t^1)/2)*(10-(8*t))-(-3*t)-6 = 0
((9*t)/2)*(10-8*t)+3*t-6 = 0
9/2*t*(10-8*t)+3*t-6 = 0
9/2*t*(10-8*t)+3*t-6 = 0
48*t-36*t^2-6 = 0
48*t-36*t^2-6 = 0
6*(8*t-6*t^2-1) = 0
8*t-6*t^2-1 = 0
DELTA = 8^2-(-6*(-1)*4)
DELTA = 40
DELTA > 0
t = (40^(1/2)-8)/(-6*2) or t = (-40^(1/2)-8)/(-6*2)
t = (2*10^(1/2)-8)/(-12) or t = (-2*10^(1/2)-8)/(-12)
6*(t-((2*10^(1/2)-8)/(-12)))*(t-((-2*10^(1/2)-8)/(-12))) = 0
6*(t-((2*10^(1/2)-8)/(-12)))*(t-((-2*10^(1/2)-8)/(-12))) = 0
( t-((-2*10^(1/2)-8)/(-12)) )
t-((-2*10^(1/2)-8)/(-12)) = 0 // + (-2*10^(1/2)-8)/(-12)
t = (-2*10^(1/2)-8)/(-12)
( t-((2*10^(1/2)-8)/(-12)) )
t-((2*10^(1/2)-8)/(-12)) = 0 // + (2*10^(1/2)-8)/(-12)
t = (2*10^(1/2)-8)/(-12)
t in { (-2*10^(1/2)-8)/(-12), (2*10^(1/2)-8)/(-12) }
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