2x^2=1286408

Solution for 2x^2=1286408 equation:

2x^2=1286408

We move all terms to the left:

2x^2-(1286408)=0

a = 2; b = 0; c = -1286408;
Δ = b2-4ac
Δ = 02-4·2·(-1286408)
Δ = 10291264
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{10291264}=3208$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-3208}{2*2}=\frac{-3208}{4}
=-802
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+3208}{2*2}=\frac{3208}{4}
=802
$