F(x)=5x+4/4x-1

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Solution for F(x)=5x+4/4x-1 equation: 



(F)=5F+4/4F-1

We move all terms to the left:

(F)-(5F+4/4F-1)=0



Domain of the equation: 4F-1)!=0

F∈R



We get rid of parentheses

F-5F-4/4F+1=0

We multiply all the terms by the denominator


F*4F-5F*4F+1*4F-4=0

Wy multiply elements

4F^2-20F^2+4F-4=0

We add all the numbers together, and all the variables

-16F^2+4F-4=0

a = -16; b = 4; c = -4;
Δ = b2-4ac
Δ = 42-4·(-16)·(-4)
Δ = -240
Delta is less than zero, so there is no solution for the equation

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