x^2-2x-8999=0

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Solution for x^2-2x-8999=0 equation:


Simplifying
x2 + -2x + -8999 = 0

Reorder the terms:
-8999 + -2x + x2 = 0

Solving
-8999 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '8999' to each side of the equation.
-8999 + -2x + 8999 + x2 = 0 + 8999

Reorder the terms:
-8999 + 8999 + -2x + x2 = 0 + 8999

Combine like terms: -8999 + 8999 = 0
0 + -2x + x2 = 0 + 8999
-2x + x2 = 0 + 8999

Combine like terms: 0 + 8999 = 8999
-2x + x2 = 8999

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 = 8999 + 1

Reorder the terms:
1 + -2x + x2 = 8999 + 1

Combine like terms: 8999 + 1 = 9000
1 + -2x + x2 = 9000

Factor a perfect square on the left side:
(x + -1)(x + -1) = 9000

Calculate the square root of the right side: 94.868329805

Break this problem into two subproblems by setting 
(x + -1) equal to 94.868329805 and -94.868329805.

Subproblem 1

x + -1 = 94.868329805 Simplifying x + -1 = 94.868329805 Reorder the terms: -1 + x = 94.868329805 Solving -1 + x = 94.868329805 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 = 94.868329805 + 1 Combine like terms: -1 + 1 = 0 0 + x = 94.868329805 + 1 x = 94.868329805 + 1 Combine like terms: 94.868329805 + 1 = 95.868329805 x = 95.868329805 Simplifying x = 95.868329805

Subproblem 2

x + -1 = -94.868329805 Simplifying x + -1 = -94.868329805 Reorder the terms: -1 + x = -94.868329805 Solving -1 + x = -94.868329805 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 = -94.868329805 + 1 Combine like terms: -1 + 1 = 0 0 + x = -94.868329805 + 1 x = -94.868329805 + 1 Combine like terms: -94.868329805 + 1 = -93.868329805 x = -93.868329805 Simplifying x = -93.868329805

Solution

The solution to the problem is based on the solutions from the subproblems. x = {95.868329805, -93.868329805}

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