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18x^2=12x-9
We move all terms to the left:
18x^2-(12x-9)=0
We get rid of parentheses
18x^2-12x+9=0
a = 18; b = -12; c = +9;
Δ = b2-4ac
Δ = -122-4·18·9
Δ = -504
Delta is less than zero, so there is no solution for the equation
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