x^2+2x-92=0

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Solution for x^2+2x-92=0 equation:


Simplifying
x2 + 2x + -92 = 0

Reorder the terms:
-92 + 2x + x2 = 0

Solving
-92 + 2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '92' to each side of the equation.
-92 + 2x + 92 + x2 = 0 + 92

Reorder the terms:
-92 + 92 + 2x + x2 = 0 + 92

Combine like terms: -92 + 92 = 0
0 + 2x + x2 = 0 + 92
2x + x2 = 0 + 92

Combine like terms: 0 + 92 = 92
2x + x2 = 92

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 = 92 + 1

Reorder the terms:
1 + 2x + x2 = 92 + 1

Combine like terms: 92 + 1 = 93
1 + 2x + x2 = 93

Factor a perfect square on the left side:
(x + 1)(x + 1) = 93

Calculate the square root of the right side: 9.643650761

Break this problem into two subproblems by setting 
(x + 1) equal to 9.643650761 and -9.643650761.

Subproblem 1

x + 1 = 9.643650761 Simplifying x + 1 = 9.643650761 Reorder the terms: 1 + x = 9.643650761 Solving 1 + x = 9.643650761 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 = 9.643650761 + -1 Combine like terms: 1 + -1 = 0 0 + x = 9.643650761 + -1 x = 9.643650761 + -1 Combine like terms: 9.643650761 + -1 = 8.643650761 x = 8.643650761 Simplifying x = 8.643650761

Subproblem 2

x + 1 = -9.643650761 Simplifying x + 1 = -9.643650761 Reorder the terms: 1 + x = -9.643650761 Solving 1 + x = -9.643650761 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 = -9.643650761 + -1 Combine like terms: 1 + -1 = 0 0 + x = -9.643650761 + -1 x = -9.643650761 + -1 Combine like terms: -9.643650761 + -1 = -10.643650761 x = -10.643650761 Simplifying x = -10.643650761

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.643650761, -10.643650761}

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