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3y^2=5y-9
We move all terms to the left:
3y^2-(5y-9)=0
We get rid of parentheses
3y^2-5y+9=0
a = 3; b = -5; c = +9;
Δ = b2-4ac
Δ = -52-4·3·9
Δ = -83
Delta is less than zero, so there is no solution for the equation
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