2x-11/2x=1

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Solution for 2x-11/2x=1 equation:



2x-11/2x=1
We move all terms to the left:
2x-11/2x-(1)=0
Domain of the equation: 2x!=0
x!=0/2
x!=0
x∈R
We multiply all the terms by the denominator
2x*2x-1*2x-11=0
Wy multiply elements
4x^2-2x-11=0
a = 4; b = -2; c = -11;
Δ = b2-4ac
Δ = -22-4·4·(-11)
Δ = 180
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:
$\sqrt{\Delta}=\sqrt{180}=\sqrt{36*5}=\sqrt{36}*\sqrt{5}=6\sqrt{5}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-2)-6\sqrt{5}}{2*4}=\frac{2-6\sqrt{5}}{8} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+6\sqrt{5}}{2*4}=\frac{2+6\sqrt{5}}{8} $

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