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5x+5/x=52
We move all terms to the left:
5x+5/x-(52)=0
Domain of the equation: x!=0We multiply all the terms by the denominator
x∈R
5x*x-52*x+5=0
We add all the numbers together, and all the variables
-52x+5x*x+5=0
Wy multiply elements
5x^2-52x+5=0
a = 5; b = -52; c = +5;
Δ = b2-4ac
Δ = -522-4·5·5
Δ = 2604
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{2604}=\sqrt{4*651}=\sqrt{4}*\sqrt{651}=2\sqrt{651}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-52)-2\sqrt{651}}{2*5}=\frac{52-2\sqrt{651}}{10} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-52)+2\sqrt{651}}{2*5}=\frac{52+2\sqrt{651}}{10} $
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