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=2Y^2-2Y+4=0
We move all terms to the left:
-(2Y^2-2Y+4)=0
We get rid of parentheses
-2Y^2+2Y-4=0
a = -2; b = 2; c = -4;
Δ = b2-4ac
Δ = 22-4·(-2)·(-4)
Δ = -28
Delta is less than zero, so there is no solution for the equation
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