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(3)=3H^2-7H+19
We move all terms to the left:
(3)-(3H^2-7H+19)=0
We get rid of parentheses
-3H^2+7H-19+3=0
We add all the numbers together, and all the variables
-3H^2+7H-16=0
a = -3; b = 7; c = -16;
Δ = b2-4ac
Δ = 72-4·(-3)·(-16)
Δ = -143
Delta is less than zero, so there is no solution for the equation
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