2/x-1+4/2-x=0

Solution for 2/x-1+4/2-x=0 equation:

2/x-1+4/2-x=0


Domain of the equation: x!=0

x∈R


We add all the numbers together, and all the variables

-1x+2/x+1=0

We multiply all the terms by the denominator


-1x*x+1*x+2=0

We add all the numbers together, and all the variables

x-1x*x+2=0

Wy multiply elements

-1x^2+x+2=0

a = -1; b = 1; c = +2;
Δ = b2-4ac
Δ = 12-4·(-1)·2
Δ = 9
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{9}=3$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-3}{2*-1}=\frac{-4}{-2}
=+2
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+3}{2*-1}=\frac{2}{-2}
=-1
$