16x2-64x-246=0

Solution for 16x2-64x-246=0 equation:

16x^2-64x-246=0

a = 16; b = -64; c = -246;
Δ = b2-4ac
Δ = -642-4·16·(-246)
Δ = 19840
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{19840}=\sqrt{64*310}=\sqrt{64}*\sqrt{310}=8\sqrt{310}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-64)-8\sqrt{310}}{2*16}=\frac{64-8\sqrt{310}}{32}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-64)+8\sqrt{310}}{2*16}=\frac{64+8\sqrt{310}}{32}
$