x^2-25=(x-5)(x-5)

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Solution for x^2-25=(x-5)(x-5) equation:


Simplifying
x2 + -25 = (x + -5)(x + -5)

Reorder the terms:
-25 + x2 = (x + -5)(x + -5)

Reorder the terms:
-25 + x2 = (-5 + x)(x + -5)

Reorder the terms:
-25 + x2 = (-5 + x)(-5 + x)

Multiply (-5 + x) * (-5 + x)
-25 + x2 = (-5(-5 + x) + x(-5 + x))
-25 + x2 = ((-5 * -5 + x * -5) + x(-5 + x))
-25 + x2 = ((25 + -5x) + x(-5 + x))
-25 + x2 = (25 + -5x + (-5 * x + x * x))
-25 + x2 = (25 + -5x + (-5x + x2))

Combine like terms: -5x + -5x = -10x
-25 + x2 = (25 + -10x + x2)

Add '-1x2' to each side of the equation.
-25 + x2 + -1x2 = 25 + -10x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-25 + 0 = 25 + -10x + x2 + -1x2
-25 = 25 + -10x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-25 = 25 + -10x + 0
-25 = 25 + -10x

Solving
-25 = 25 + -10x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '10x' to each side of the equation.
-25 + 10x = 25 + -10x + 10x

Combine like terms: -10x + 10x = 0
-25 + 10x = 25 + 0
-25 + 10x = 25

Add '25' to each side of the equation.
-25 + 25 + 10x = 25 + 25

Combine like terms: -25 + 25 = 0
0 + 10x = 25 + 25
10x = 25 + 25

Combine like terms: 25 + 25 = 50
10x = 50

Divide each side by '10'.
x = 5

Simplifying
x = 5

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