x^2-2x-512=0

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Solution for x^2-2x-512=0 equation:


Simplifying
x2 + -2x + -512 = 0

Reorder the terms:
-512 + -2x + x2 = 0

Solving
-512 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '512' to each side of the equation.
-512 + -2x + 512 + x2 = 0 + 512

Reorder the terms:
-512 + 512 + -2x + x2 = 0 + 512

Combine like terms: -512 + 512 = 0
0 + -2x + x2 = 0 + 512
-2x + x2 = 0 + 512

Combine like terms: 0 + 512 = 512
-2x + x2 = 512

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 512 + 1

Reorder the terms:
1 + -2x + x2 = 512 + 1

Combine like terms: 512 + 1 = 513
1 + -2x + x2 = 513

Factor a perfect square on the left side:
(x + -1)(x + -1) = 513

Calculate the square root of the right side: 22.649503306

Break this problem into two subproblems by setting 
(x + -1) equal to 22.649503306 and -22.649503306.

Subproblem 1

x + -1 = 22.649503306 Simplifying x + -1 = 22.649503306 Reorder the terms: -1 + x = 22.649503306 Solving -1 + x = 22.649503306 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 22.649503306 + 1 Combine like terms: -1 + 1 = 0 0 + x = 22.649503306 + 1 x = 22.649503306 + 1 Combine like terms: 22.649503306 + 1 = 23.649503306 x = 23.649503306 Simplifying x = 23.649503306

Subproblem 2

x + -1 = -22.649503306 Simplifying x + -1 = -22.649503306 Reorder the terms: -1 + x = -22.649503306 Solving -1 + x = -22.649503306 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -22.649503306 + 1 Combine like terms: -1 + 1 = 0 0 + x = -22.649503306 + 1 x = -22.649503306 + 1 Combine like terms: -22.649503306 + 1 = -21.649503306 x = -21.649503306 Simplifying x = -21.649503306

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.649503306, -21.649503306}

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