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=2Y^2-17Y+84
We move all terms to the left:
-(2Y^2-17Y+84)=0
We get rid of parentheses
-2Y^2+17Y-84=0
a = -2; b = 17; c = -84;
Δ = b2-4ac
Δ = 172-4·(-2)·(-84)
Δ = -383
Delta is less than zero, so there is no solution for the equation
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