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-1=-3x^2+2x-7
We move all terms to the left:
-1-(-3x^2+2x-7)=0
We get rid of parentheses
3x^2-2x+7-1=0
We add all the numbers together, and all the variables
3x^2-2x+6=0
a = 3; b = -2; c = +6;
Δ = b2-4ac
Δ = -22-4·3·6
Δ = -68
Delta is less than zero, so there is no solution for the equation
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