((x-1)(x-1))-25=0

Solution for ((x-1)(x-1))-25=0 equation:

((x-1)(x-1))-25=0

We multiply parentheses ..

((+x^2-1x-1x+1))-25=0


We calculate terms in parentheses: +((+x^2-1x-1x+1)), so:

(+x^2-1x-1x+1)

We get rid of parentheses

x^2-1x-1x+1

We add all the numbers together, and all the variables

x^2-2x+1

Back to the equation:

+(x^2-2x+1)


We get rid of parentheses

x^2-2x+1-25=0

We add all the numbers together, and all the variables

x^2-2x-24=0

a = 1; b = -2; c = -24;
Δ = b2-4ac
Δ = -22-4·1·(-24)
Δ = 100
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{100}=10$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-2)-10}{2*1}=\frac{-8}{2}
=-4
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+10}{2*1}=\frac{12}{2}
=6
$