5/x-4=6x

Solution for 5/x-4=6x equation:

5/x-4=6x

We move all terms to the left:

5/x-4-(6x)=0


Domain of the equation: x!=0

x∈R


We add all the numbers together, and all the variables

-6x+5/x-4=0

We multiply all the terms by the denominator


-6x*x-4*x+5=0

We add all the numbers together, and all the variables

-4x-6x*x+5=0

Wy multiply elements

-6x^2-4x+5=0

a = -6; b = -4; c = +5;
Δ = b2-4ac
Δ = -42-4·(-6)·5
Δ = 136
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{136}=\sqrt{4*34}=\sqrt{4}*\sqrt{34}=2\sqrt{34}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-2\sqrt{34}}{2*-6}=\frac{4-2\sqrt{34}}{-12}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+2\sqrt{34}}{2*-6}=\frac{4+2\sqrt{34}}{-12}
$