x^2-0.83x+0.0028=O

Solution for x^2-0.83x+0.0028=O equation:

x^2-0.83x+0.0028=

We move all terms to the left:

x^2-0.83x+0.0028-()=0

We add all the numbers together, and all the variables

x^2-0.83x=0

a = 1; b = -0.83; c = 0;
Δ = b2-4ac
Δ = -0.832-4·1·0
Δ = 0.6889
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{-(-0.83)-\sqrt{0.6889}}{2*1}=\frac{0.83-\sqrt{0.6889}}{2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-0.83)+\sqrt{0.6889}}{2*1}=\frac{0.83+\sqrt{0.6889}}{2}
$