x(x-8)=46

Solution for x(x-8)=46 equation:

x(x-8)=46

We move all terms to the left:

x(x-8)-(46)=0

We multiply parentheses

x^2-8x-46=0

a = 1; b = -8; c = -46;
Δ = b2-4ac
Δ = -82-4·1·(-46)
Δ = 248
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:

$\sqrt{\Delta}=\sqrt{248}=\sqrt{4*62}=\sqrt{4}*\sqrt{62}=2\sqrt{62}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-8)-2\sqrt{62}}{2*1}=\frac{8-2\sqrt{62}}{2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-8)+2\sqrt{62}}{2*1}=\frac{8+2\sqrt{62}}{2}
$