4-(3/x)=x

Solution for 4-(3/x)=x equation:

4-(3/x)=x

We move all terms to the left:

4-(3/x)-(x)=0


Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

-(+3/x)-x+4=0

We add all the numbers together, and all the variables

-1x-(+3/x)+4=0

We get rid of parentheses

-1x-3/x+4=0

We multiply all the terms by the denominator


-1x*x+4*x-3=0

We add all the numbers together, and all the variables

4x-1x*x-3=0

Wy multiply elements

-1x^2+4x-3=0

a = -1; b = 4; c = -3;
Δ = b2-4ac
Δ = 42-4·(-1)·(-3)
Δ = 4
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4}=2$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-2}{2*-1}=\frac{-6}{-2}
=+3
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+2}{2*-1}=\frac{-2}{-2}
=1
$