2x-15/3=10/x

Solution for 2x-15/3=10/x equation:

2x-15/3=10/x

We move all terms to the left:

2x-15/3-(10/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

2x-(+10/x)-15/3=0

We add all the numbers together, and all the variables

2x-(+10/x)-5=0

We get rid of parentheses

2x-10/x-5=0

We multiply all the terms by the denominator


2x*x-5*x-10=0

We add all the numbers together, and all the variables

-5x+2x*x-10=0

Wy multiply elements

2x^2-5x-10=0

a = 2; b = -5; c = -10;
Δ = b2-4ac
Δ = -52-4·2·(-10)
Δ = 105
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-\sqrt{105}}{2*2}=\frac{5-\sqrt{105}}{4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{105}}{2*2}=\frac{5+\sqrt{105}}{4}
$