x^2+10x-124=0

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Solution for x^2+10x-124=0 equation:


Simplifying
x2 + 10x + -124 = 0

Reorder the terms:
-124 + 10x + x2 = 0

Solving
-124 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '124' to each side of the equation.
-124 + 10x + 124 + x2 = 0 + 124

Reorder the terms:
-124 + 124 + 10x + x2 = 0 + 124

Combine like terms: -124 + 124 = 0
0 + 10x + x2 = 0 + 124
10x + x2 = 0 + 124

Combine like terms: 0 + 124 = 124
10x + x2 = 124

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 = 124 + 25

Reorder the terms:
25 + 10x + x2 = 124 + 25

Combine like terms: 124 + 25 = 149
25 + 10x + x2 = 149

Factor a perfect square on the left side:
(x + 5)(x + 5) = 149

Calculate the square root of the right side: 12.206555616

Break this problem into two subproblems by setting 
(x + 5) equal to 12.206555616 and -12.206555616.

Subproblem 1

x + 5 = 12.206555616 Simplifying x + 5 = 12.206555616 Reorder the terms: 5 + x = 12.206555616 Solving 5 + x = 12.206555616 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 = 12.206555616 + -5 Combine like terms: 5 + -5 = 0 0 + x = 12.206555616 + -5 x = 12.206555616 + -5 Combine like terms: 12.206555616 + -5 = 7.206555616 x = 7.206555616 Simplifying x = 7.206555616

Subproblem 2

x + 5 = -12.206555616 Simplifying x + 5 = -12.206555616 Reorder the terms: 5 + x = -12.206555616 Solving 5 + x = -12.206555616 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 = -12.206555616 + -5 Combine like terms: 5 + -5 = 0 0 + x = -12.206555616 + -5 x = -12.206555616 + -5 Combine like terms: -12.206555616 + -5 = -17.206555616 x = -17.206555616 Simplifying x = -17.206555616

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.206555616, -17.206555616}

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