0=x^2+9x-323

Solution for 0=x^2+9x-323 equation:

0=x^2+9x-323

We move all terms to the left:

0-(x^2+9x-323)=0

We add all the numbers together, and all the variables

-(x^2+9x-323)=0

We get rid of parentheses

-x^2-9x+323=0

We add all the numbers together, and all the variables

-1x^2-9x+323=0

a = -1; b = -9; c = +323;
Δ = b2-4ac
Δ = -92-4·(-1)·323
Δ = 1373
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{-(-9)-\sqrt{1373}}{2*-1}=\frac{9-\sqrt{1373}}{-2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+\sqrt{1373}}{2*-1}=\frac{9+\sqrt{1373}}{-2}
$