0=X^2+3x-1080

Solution for 0=X^2+3x-1080 equation:

0=X^2+3X-1080

We move all terms to the left:

0-(X^2+3X-1080)=0

We add all the numbers together, and all the variables

-(X^2+3X-1080)=0

We get rid of parentheses

-X^2-3X+1080=0

We add all the numbers together, and all the variables

-1X^2-3X+1080=0

a = -1; b = -3; c = +1080;
Δ = b2-4ac
Δ = -32-4·(-1)·1080
Δ = 4329
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{4329}=\sqrt{9*481}=\sqrt{9}*\sqrt{481}=3\sqrt{481}$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3)-3\sqrt{481}}{2*-1}=\frac{3-3\sqrt{481}}{-2}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+3\sqrt{481}}{2*-1}=\frac{3+3\sqrt{481}}{-2}
$