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x-2/x-5=2x+1/x-1
We move all terms to the left:
x-2/x-5-(2x+1/x-1)=0
Domain of the equation: x!=0
x∈R
Domain of the equation: x-1)!=0We get rid of parentheses
x∈R
x-2/x-2x-1/x+1-5=0
We multiply all the terms by the denominator
x*x-2x*x+1*x-5*x-2-1=0
We add all the numbers together, and all the variables
-4x+x*x-2x*x-3=0
Wy multiply elements
x^2-2x^2-4x-3=0
We add all the numbers together, and all the variables
-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$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-2}{2*-1}=\frac{2}{-2} =-1 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+2}{2*-1}=\frac{6}{-2} =-3 $
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