x^2-x-264=0

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Solution for x^2-x-264=0 equation:


Simplifying
x2 + -1x + -264 = 0

Reorder the terms:
-264 + -1x + x2 = 0

Solving
-264 + -1x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '264' to each side of the equation.
-264 + -1x + 264 + x2 = 0 + 264

Reorder the terms:
-264 + 264 + -1x + x2 = 0 + 264

Combine like terms: -264 + 264 = 0
0 + -1x + x2 = 0 + 264
-1x + x2 = 0 + 264

Combine like terms: 0 + 264 = 264
-1x + x2 = 264

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 264 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 264 + 0.25

Combine like terms: 264 + 0.25 = 264.25
0.25 + -1x + x2 = 264.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 264.25

Calculate the square root of the right side: 16.255768207

Break this problem into two subproblems by setting 
(x + -0.5) equal to 16.255768207 and -16.255768207.

Subproblem 1

x + -0.5 = 16.255768207 Simplifying x + -0.5 = 16.255768207 Reorder the terms: -0.5 + x = 16.255768207 Solving -0.5 + x = 16.255768207 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 16.255768207 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 16.255768207 + 0.5 x = 16.255768207 + 0.5 Combine like terms: 16.255768207 + 0.5 = 16.755768207 x = 16.755768207 Simplifying x = 16.755768207

Subproblem 2

x + -0.5 = -16.255768207 Simplifying x + -0.5 = -16.255768207 Reorder the terms: -0.5 + x = -16.255768207 Solving -0.5 + x = -16.255768207 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -16.255768207 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -16.255768207 + 0.5 x = -16.255768207 + 0.5 Combine like terms: -16.255768207 + 0.5 = -15.755768207 x = -15.755768207 Simplifying x = -15.755768207

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.755768207, -15.755768207}

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