x^2+22x-125=2

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Solution for x^2+22x-125=2 equation:


Simplifying
x2 + 22x + -125 = 2

Reorder the terms:
-125 + 22x + x2 = 2

Solving
-125 + 22x + x2 = 2

Solving for variable 'x'.

Reorder the terms:
-125 + -2 + 22x + x2 = 2 + -2

Combine like terms: -125 + -2 = -127
-127 + 22x + x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-127 + 22x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '127' to each side of the equation.
-127 + 22x + 127 + x2 = 0 + 127

Reorder the terms:
-127 + 127 + 22x + x2 = 0 + 127

Combine like terms: -127 + 127 = 0
0 + 22x + x2 = 0 + 127
22x + x2 = 0 + 127

Combine like terms: 0 + 127 = 127
22x + x2 = 127

The x term is 22x.  Take half its coefficient (11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
22x + 121 + x2 = 127 + 121

Reorder the terms:
121 + 22x + x2 = 127 + 121

Combine like terms: 127 + 121 = 248
121 + 22x + x2 = 248

Factor a perfect square on the left side:
(x + 11)(x + 11) = 248

Calculate the square root of the right side: 15.748015748

Break this problem into two subproblems by setting 
(x + 11) equal to 15.748015748 and -15.748015748.

Subproblem 1

x + 11 = 15.748015748 Simplifying x + 11 = 15.748015748 Reorder the terms: 11 + x = 15.748015748 Solving 11 + x = 15.748015748 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = 15.748015748 + -11 Combine like terms: 11 + -11 = 0 0 + x = 15.748015748 + -11 x = 15.748015748 + -11 Combine like terms: 15.748015748 + -11 = 4.748015748 x = 4.748015748 Simplifying x = 4.748015748

Subproblem 2

x + 11 = -15.748015748 Simplifying x + 11 = -15.748015748 Reorder the terms: 11 + x = -15.748015748 Solving 11 + x = -15.748015748 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = -15.748015748 + -11 Combine like terms: 11 + -11 = 0 0 + x = -15.748015748 + -11 x = -15.748015748 + -11 Combine like terms: -15.748015748 + -11 = -26.748015748 x = -26.748015748 Simplifying x = -26.748015748

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.748015748, -26.748015748}

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