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2x(6x+1)=-9
We move all terms to the left:
2x(6x+1)-(-9)=0
We add all the numbers together, and all the variables
2x(6x+1)+9=0
We multiply parentheses
12x^2+2x+9=0
a = 12; b = 2; c = +9;
Δ = b2-4ac
Δ = 22-4·12·9
Δ = -428
Delta is less than zero, so there is no solution for the equation
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