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(F+1)=4F^2+5F+6
We move all terms to the left:
(F+1)-(4F^2+5F+6)=0
We get rid of parentheses
-4F^2+F-5F+1-6=0
We add all the numbers together, and all the variables
-4F^2-4F-5=0
a = -4; b = -4; c = -5;
Δ = b2-4ac
Δ = -42-4·(-4)·(-5)
Δ = -64
Delta is less than zero, so there is no solution for the equation
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