X^2+22x-17000=0

Solution for X^2+22x-17000=0 equation:

X^2+22X-17000=0

a = 1; b = 22; c = -17000;
Δ = b2-4ac
Δ = 222-4·1·(-17000)
Δ = 68484
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:

$\sqrt{\Delta}=\sqrt{68484}=\sqrt{4*17121}=\sqrt{4}*\sqrt{17121}=2\sqrt{17121}$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(22)-2\sqrt{17121}}{2*1}=\frac{-22-2\sqrt{17121}}{2}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(22)+2\sqrt{17121}}{2*1}=\frac{-22+2\sqrt{17121}}{2}
$