3x-5/x-0.5=-2

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Solution for 3x-5/x-0.5=-2 equation:



3x-5/x-0.5=-2
We move all terms to the left:
3x-5/x-0.5-(-2)=0
Domain of the equation: x!=0
x∈R
We add all the numbers together, and all the variables
3x-5/x+1.5=0
We multiply all the terms by the denominator
3x*x+(1.5)*x-5=0
We multiply parentheses
3x*x+1.5x-5=0
Wy multiply elements
3x^2+1.5x-5=0
a = 3; b = 1.5; c = -5;
Δ = b2-4ac
Δ = 1.52-4·3·(-5)
Δ = 62.25
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{-(1.5)-\sqrt{62.25}}{2*3}=\frac{-1.5-\sqrt{62.25}}{6} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1.5)+\sqrt{62.25}}{2*3}=\frac{-1.5+\sqrt{62.25}}{6} $

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