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3x^2=8x-9
We move all terms to the left:
3x^2-(8x-9)=0
We get rid of parentheses
3x^2-8x+9=0
a = 3; b = -8; c = +9;
Δ = b2-4ac
Δ = -82-4·3·9
Δ = -44
Delta is less than zero, so there is no solution for the equation
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