x^2-11x-570=0

Solution for x^2-11x-570=0 equation:

x^2-11x-570=0

a = 1; b = -11; c = -570;
Δ = b2-4ac
Δ = -112-4·1·(-570)
Δ = 2401
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{2401}=49$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-11)-49}{2*1}=\frac{-38}{2}
=-19
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-11)+49}{2*1}=\frac{60}{2}
=30
$