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(F)=F^2-6F+73
We move all terms to the left:
(F)-(F^2-6F+73)=0
We get rid of parentheses
-F^2+F+6F-73=0
We add all the numbers together, and all the variables
-1F^2+7F-73=0
a = -1; b = 7; c = -73;
Δ = b2-4ac
Δ = 72-4·(-1)·(-73)
Δ = -243
Delta is less than zero, so there is no solution for the equation
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