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(F)=-26/F+7
We move all terms to the left:
(F)-(-26/F+7)=0
Domain of the equation: F+7)!=0We get rid of parentheses
F∈R
F+26/F-7=0
We multiply all the terms by the denominator
F*F-7*F+26=0
We add all the numbers together, and all the variables
-7F+F*F+26=0
Wy multiply elements
F^2-7F+26=0
a = 1; b = -7; c = +26;
Δ = b2-4ac
Δ = -72-4·1·26
Δ = -55
Delta is less than zero, so there is no solution for the equation
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