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3(x^2+2x+1)+31=0
We multiply parentheses
3x^2+6x+3+31=0
We add all the numbers together, and all the variables
3x^2+6x+34=0
a = 3; b = 6; c = +34;
Δ = b2-4ac
Δ = 62-4·3·34
Δ = -372
Delta is less than zero, so there is no solution for the equation
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