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=0.5Y^2-12Y+120
We move all terms to the left:
-(0.5Y^2-12Y+120)=0
We get rid of parentheses
-0.5Y^2+12Y-120=0
a = -0.5; b = 12; c = -120;
Δ = b2-4ac
Δ = 122-4·(-0.5)·(-120)
Δ = -96
Delta is less than zero, so there is no solution for the equation
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