(1.3*(10^15))-(((1.2*(10^9))x))=0

Solution for (1.3*(10^15))-(((1.2*(10^9))x))=0 equation:

(1.3(10^15))-(((1.2(10^9))x))=0

We add all the numbers together, and all the variables

-(((1.210^9)x))+57.420825906681=0


We calculate terms in parentheses: -(((1.210^9)x)), so:

((1.210^9)x)


We calculate terms in parentheses: +((1.210^9)x), so:

(1.210^9)x

We multiply parentheses

x^2

Back to the equation:

+(x^2)


Back to the equation:

-(x^2)


We add all the numbers together, and all the variables

-1x^2+57.420825906681=0

a = -1; b = 0; c = +57.420825906681;
Δ = b2-4ac
Δ = 02-4·(-1)·57.420825906681
Δ = 229.68330362672
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{229.68330362672}}{2*-1}=\frac{0-\sqrt{229.68330362672}}{-2}
=-\frac{\sqrt{}}{-2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{229.68330362672}}{2*-1}=\frac{0+\sqrt{229.68330362672}}{-2}
=\frac{\sqrt{}}{-2}
$