4x+25/x=20

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Solution for 4x+25/x=20 equation: 



4x+25/x=20

We move all terms to the left:

4x+25/x-(20)=0



Domain of the equation: x!=0

x∈R



We multiply all the terms by the denominator


4x*x-20*x+25=0

We add all the numbers together, and all the variables

-20x+4x*x+25=0

Wy multiply elements

4x^2-20x+25=0

a = 4; b = -20; c = +25;
Δ = b2-4ac
Δ = -202-4·4·25
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{20}{8}=2+1/2$

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