2x^2-4x-3360=0

Solution for 2x^2-4x-3360=0 equation:

2x^2-4x-3360=0

a = 2; b = -4; c = -3360;
Δ = b2-4ac
Δ = -42-4·2·(-3360)
Δ = 26896
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{26896}=164$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-164}{2*2}=\frac{-160}{4}
=-40
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+164}{2*2}=\frac{168}{4}
=42
$