x^2-6x=59

Solution for x^2-6x=59 equation:

x^2-6x=59

We move all terms to the left:

x^2-6x-(59)=0

a = 1; b = -6; c = -59;
Δ = b2-4ac
Δ = -62-4·1·(-59)
Δ = 272
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:

$\sqrt{\Delta}=\sqrt{272}=\sqrt{16*17}=\sqrt{16}*\sqrt{17}=4\sqrt{17}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-4\sqrt{17}}{2*1}=\frac{6-4\sqrt{17}}{2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+4\sqrt{17}}{2*1}=\frac{6+4\sqrt{17}}{2}
$