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=2H^2+4H+6
We move all terms to the left:
-(2H^2+4H+6)=0
We get rid of parentheses
-2H^2-4H-6=0
a = -2; b = -4; c = -6;
Δ = b2-4ac
Δ = -42-4·(-2)·(-6)
Δ = -32
Delta is less than zero, so there is no solution for the equation
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