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(F)=-7F^2+5F-2
We move all terms to the left:
(F)-(-7F^2+5F-2)=0
We get rid of parentheses
7F^2-5F+F+2=0
We add all the numbers together, and all the variables
7F^2-4F+2=0
a = 7; b = -4; c = +2;
Δ = b2-4ac
Δ = -42-4·7·2
Δ = -40
Delta is less than zero, so there is no solution for the equation
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