x^2-10x-125=14

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Solution for x^2-10x-125=14 equation:


Simplifying
x2 + -10x + -125 = 14

Reorder the terms:
-125 + -10x + x2 = 14

Solving
-125 + -10x + x2 = 14

Solving for variable 'x'.

Reorder the terms:
-125 + -14 + -10x + x2 = 14 + -14

Combine like terms: -125 + -14 = -139
-139 + -10x + x2 = 14 + -14

Combine like terms: 14 + -14 = 0
-139 + -10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '139' to each side of the equation.
-139 + -10x + 139 + x2 = 0 + 139

Reorder the terms:
-139 + 139 + -10x + x2 = 0 + 139

Combine like terms: -139 + 139 = 0
0 + -10x + x2 = 0 + 139
-10x + x2 = 0 + 139

Combine like terms: 0 + 139 = 139
-10x + x2 = 139

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = 139 + 25

Reorder the terms:
25 + -10x + x2 = 139 + 25

Combine like terms: 139 + 25 = 164
25 + -10x + x2 = 164

Factor a perfect square on the left side:
(x + -5)(x + -5) = 164

Calculate the square root of the right side: 12.806248475

Break this problem into two subproblems by setting 
(x + -5) equal to 12.806248475 and -12.806248475.

Subproblem 1

x + -5 = 12.806248475 Simplifying x + -5 = 12.806248475 Reorder the terms: -5 + x = 12.806248475 Solving -5 + x = 12.806248475 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 12.806248475 + 5 Combine like terms: -5 + 5 = 0 0 + x = 12.806248475 + 5 x = 12.806248475 + 5 Combine like terms: 12.806248475 + 5 = 17.806248475 x = 17.806248475 Simplifying x = 17.806248475

Subproblem 2

x + -5 = -12.806248475 Simplifying x + -5 = -12.806248475 Reorder the terms: -5 + x = -12.806248475 Solving -5 + x = -12.806248475 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -12.806248475 + 5 Combine like terms: -5 + 5 = 0 0 + x = -12.806248475 + 5 x = -12.806248475 + 5 Combine like terms: -12.806248475 + 5 = -7.806248475 x = -7.806248475 Simplifying x = -7.806248475

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.806248475, -7.806248475}

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