x+1/x=0.78

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Solution for x+1/x=0.78 equation: 



x+1/x=0.78

We move all terms to the left:

x+1/x-(0.78)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

x+1/x-0.78=0

We multiply all the terms by the denominator


x*x-(0.78)*x+1=0

We multiply parentheses

x*x-0.78x+1=0

Wy multiply elements

x^2-0.78x+1=0

a = 1; b = -0.78; c = +1;
Δ = b2-4ac
Δ = -0.782-4·1·1
Δ = -3.3916
Delta is less than zero, so there is no solution for the equation

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