x^2+28x+58=0

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Solution for x^2+28x+58=0 equation:


Simplifying
x2 + 28x + 58 = 0

Reorder the terms:
58 + 28x + x2 = 0

Solving
58 + 28x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-58' to each side of the equation.
58 + 28x + -58 + x2 = 0 + -58

Reorder the terms:
58 + -58 + 28x + x2 = 0 + -58

Combine like terms: 58 + -58 = 0
0 + 28x + x2 = 0 + -58
28x + x2 = 0 + -58

Combine like terms: 0 + -58 = -58
28x + x2 = -58

The x term is 28x.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28x + 196 + x2 = -58 + 196

Reorder the terms:
196 + 28x + x2 = -58 + 196

Combine like terms: -58 + 196 = 138
196 + 28x + x2 = 138

Factor a perfect square on the left side:
(x + 14)(x + 14) = 138

Calculate the square root of the right side: 11.747340124

Break this problem into two subproblems by setting 
(x + 14) equal to 11.747340124 and -11.747340124.

Subproblem 1

x + 14 = 11.747340124 Simplifying x + 14 = 11.747340124 Reorder the terms: 14 + x = 11.747340124 Solving 14 + x = 11.747340124 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 11.747340124 + -14 Combine like terms: 14 + -14 = 0 0 + x = 11.747340124 + -14 x = 11.747340124 + -14 Combine like terms: 11.747340124 + -14 = -2.252659876 x = -2.252659876 Simplifying x = -2.252659876

Subproblem 2

x + 14 = -11.747340124 Simplifying x + 14 = -11.747340124 Reorder the terms: 14 + x = -11.747340124 Solving 14 + x = -11.747340124 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = -11.747340124 + -14 Combine like terms: 14 + -14 = 0 0 + x = -11.747340124 + -14 x = -11.747340124 + -14 Combine like terms: -11.747340124 + -14 = -25.747340124 x = -25.747340124 Simplifying x = -25.747340124

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.252659876, -25.747340124}

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