1,090=1,000x(2)

Solution for 1,090=1,000x(2) equation:

1.090=1.000x(2)

We move all terms to the left:

1.090-(1.000x(2))=0

We add all the numbers together, and all the variables

-(+x^2)+1.090=0

We add all the numbers together, and all the variables

-(+x^2)+1.09=0

We get rid of parentheses

-x^2+1.09=0

We add all the numbers together, and all the variables

-1x^2+1.09=0

a = -1; b = 0; c = +1.09;
Δ = b2-4ac
Δ = 02-4·(-1)·1.09
Δ = 4.36
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)-\sqrt{4.36}}{2*-1}=\frac{0-\sqrt{4.36}}{-2}
=-\frac{\sqrt{}}{-2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{4.36}}{2*-1}=\frac{0+\sqrt{4.36}}{-2}
=\frac{\sqrt{}}{-2}
$