F(x)=2x+9/x-5

Solution for F(x)=2x+9/x-5 equation:

(F)=2F+9/F-5

We move all terms to the left:

(F)-(2F+9/F-5)=0


Domain of the equation: F-5)!=0

F∈R


We get rid of parentheses

F-2F-9/F+5=0

We multiply all the terms by the denominator


F*F-2F*F+5*F-9=0

We add all the numbers together, and all the variables

5F+F*F-2F*F-9=0

Wy multiply elements

F^2-2F^2+5F-9=0

We add all the numbers together, and all the variables

-1F^2+5F-9=0

a = -1; b = 5; c = -9;
Δ = b2-4ac
Δ = 52-4·(-1)·(-9)
Δ = -11
Delta is less than zero, so there is no solution for the equation