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3x^2=12x-20
We move all terms to the left:
3x^2-(12x-20)=0
We get rid of parentheses
3x^2-12x+20=0
a = 3; b = -12; c = +20;
Δ = b2-4ac
Δ = -122-4·3·20
Δ = -96
Delta is less than zero, so there is no solution for the equation
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