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12n^2=-8n-3
We move all terms to the left:
12n^2-(-8n-3)=0
We get rid of parentheses
12n^2+8n+3=0
a = 12; b = 8; c = +3;
Δ = b2-4ac
Δ = 82-4·12·3
Δ = -80
Delta is less than zero, so there is no solution for the equation
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