4x+66/x+21=3,40

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Solution for 4x+66/x+21=3,40 equation: 



4x+66/x+21=3.40

We move all terms to the left:

4x+66/x+21-(3.40)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

4x+66/x+21-(3.4)=0

We add all the numbers together, and all the variables

4x+66/x+17.6=0

We multiply all the terms by the denominator


4x*x+(17.6)*x+66=0

We multiply parentheses

4x*x+17.6x+66=0

Wy multiply elements

4x^2+17.6x+66=0

a = 4; b = 17.6; c = +66;
Δ = b2-4ac
Δ = 17.62-4·4·66
Δ = -746.24
Delta is less than zero, so there is no solution for the equation

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