x^2-6x-1015=0

Solution for x^2-6x-1015=0 equation:

x^2-6x-1015=0

a = 1; b = -6; c = -1015;
Δ = b2-4ac
Δ = -62-4·1·(-1015)
Δ = 4096
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4096}=64$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-64}{2*1}=\frac{-58}{2}
=-29
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+64}{2*1}=\frac{70}{2}
=35
$