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=-5Y^2-4Y-10
We move all terms to the left:
-(-5Y^2-4Y-10)=0
We get rid of parentheses
5Y^2+4Y+10=0
a = 5; b = 4; c = +10;
Δ = b2-4ac
Δ = 42-4·5·10
Δ = -184
Delta is less than zero, so there is no solution for the equation
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