X2+x=96

Solution for X2+x=96 equation:

X2+X=96

We move all terms to the left:

X2+X-(96)=0

We add all the numbers together, and all the variables

X^2+X-96=0

a = 1; b = 1; c = -96;
Δ = b2-4ac
Δ = 12-4·1·(-96)
Δ = 385
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{-(1)-\sqrt{385}}{2*1}=\frac{-1-\sqrt{385}}{2}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+\sqrt{385}}{2*1}=\frac{-1+\sqrt{385}}{2}
$