2x^2-23x-25=0

Solution for 2x^2-23x-25=0 equation:

2x^2-23x-25=0

a = 2; b = -23; c = -25;
Δ = b2-4ac
Δ = -232-4·2·(-25)
Δ = 729
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{729}=27$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-23)-27}{2*2}=\frac{-4}{4}
=-1
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-23)+27}{2*2}=\frac{50}{4}
=12+1/2
$