x*(x-2)=255

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Solution for x*(x-2)=255 equation:


Simplifying
x(x + -2) = 255

Reorder the terms:
x(-2 + x) = 255
(-2 * x + x * x) = 255
(-2x + x2) = 255

Solving
-2x + x2 = 255

Solving for variable 'x'.

Reorder the terms:
-255 + -2x + x2 = 255 + -255

Combine like terms: 255 + -255 = 0
-255 + -2x + x2 = 0

Factor a trinomial.
(-15 + -1x)(17 + -1x) = 0

Subproblem 1

Set the factor '(-15 + -1x)' equal to zero and attempt to solve: Simplifying -15 + -1x = 0 Solving -15 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -1x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -1x = 0 + 15 -1x = 0 + 15 Combine like terms: 0 + 15 = 15 -1x = 15 Divide each side by '-1'. x = -15 Simplifying x = -15

Subproblem 2

Set the factor '(17 + -1x)' equal to zero and attempt to solve: Simplifying 17 + -1x = 0 Solving 17 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + -1x = 0 + -17 Combine like terms: 17 + -17 = 0 0 + -1x = 0 + -17 -1x = 0 + -17 Combine like terms: 0 + -17 = -17 -1x = -17 Divide each side by '-1'. x = 17 Simplifying x = 17

Solution

x = {-15, 17}

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