F(x)=-20/x+8

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Solution for F(x)=-20/x+8 equation: 



(F)=-20/F+8

We move all terms to the left:

(F)-(-20/F+8)=0



Domain of the equation: F+8)!=0

F∈R



We get rid of parentheses

F+20/F-8=0

We multiply all the terms by the denominator


F*F-8*F+20=0

We add all the numbers together, and all the variables

-8F+F*F+20=0

Wy multiply elements

F^2-8F+20=0

a = 1; b = -8; c = +20;
Δ = b2-4ac
Δ = -82-4·1·20
Δ = -16
Delta is less than zero, so there is no solution for the equation

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