F(x)=x+1/x-8

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Solution for F(x)=x+1/x-8 equation:



(F)=F+1/F-8
We move all terms to the left:
(F)-(F+1/F-8)=0
Domain of the equation: F-8)!=0
F∈R
We get rid of parentheses
F-F-1/F+8=0
We multiply all the terms by the denominator
F*F-F*F+8*F-1=0
We add all the numbers together, and all the variables
8F+F*F-F*F-1=0
Wy multiply elements
F^2-1F^2+8F-1=0
We add all the numbers together, and all the variables
8F-1=0
We move all terms containing F to the left, all other terms to the right
8F=1
F=1/8
F=1/8

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