8x2+8x=65918160

Solution for 8x2+8x=65918160 equation:

8x^2+8x=65918160

We move all terms to the left:

8x^2+8x-(65918160)=0

a = 8; b = 8; c = -65918160;
Δ = b2-4ac
Δ = 82-4·8·(-65918160)
Δ = 2109381184
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{2109381184}=45928$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(8)-45928}{2*8}=\frac{-45936}{16}
=-2871
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(8)+45928}{2*8}=\frac{45920}{16}
=2870
$