X2+4x=600

Solution for X2+4x=600 equation:

X2+4X=600

We move all terms to the left:

X2+4X-(600)=0

We add all the numbers together, and all the variables

X^2+4X-600=0

a = 1; b = 4; c = -600;
Δ = b2-4ac
Δ = 42-4·1·(-600)
Δ = 2416
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:

$\sqrt{\Delta}=\sqrt{2416}=\sqrt{16*151}=\sqrt{16}*\sqrt{151}=4\sqrt{151}$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-4\sqrt{151}}{2*1}=\frac{-4-4\sqrt{151}}{2}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+4\sqrt{151}}{2*1}=\frac{-4+4\sqrt{151}}{2}
$