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5x+6+12x^2=4
We move all terms to the left:
5x+6+12x^2-(4)=0
We add all the numbers together, and all the variables
12x^2+5x+2=0
a = 12; b = 5; c = +2;
Δ = b2-4ac
Δ = 52-4·12·2
Δ = -71
Delta is less than zero, so there is no solution for the equation
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