10/2x+4=4x/x+5

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Solution for 10/2x+4=4x/x+5 equation:



10/2x+4=4x/x+5
We move all terms to the left:
10/2x+4-(4x/x+5)=0
Domain of the equation: 2x!=0
x!=0/2
x!=0
x∈R
Domain of the equation: x+5)!=0
x∈R
We get rid of parentheses
10/2x-4x/x-5+4=0
We calculate fractions
(-8x^2)/2x^2+10x/2x^2-5+4=0
We add all the numbers together, and all the variables
(-8x^2)/2x^2+10x/2x^2-1=0
We multiply all the terms by the denominator
(-8x^2)+10x-1*2x^2=0
Wy multiply elements
(-8x^2)-2x^2+10x=0
We get rid of parentheses
-8x^2-2x^2+10x=0
We add all the numbers together, and all the variables
-10x^2+10x=0
a = -10; b = 10; c = 0;
Δ = b2-4ac
Δ = 102-4·(-10)·0
Δ = 100
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{100}=10$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(10)-10}{2*-10}=\frac{-20}{-20} =1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(10)+10}{2*-10}=\frac{0}{-20} =0 $

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