x^2+25x+5=0

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Solution for x^2+25x+5=0 equation:


Simplifying
x2 + 25x + 5 = 0

Reorder the terms:
5 + 25x + x2 = 0

Solving
5 + 25x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 25x + -5 + x2 = 0 + -5

Reorder the terms:
5 + -5 + 25x + x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 25x + x2 = 0 + -5
25x + x2 = 0 + -5

Combine like terms: 0 + -5 = -5
25x + x2 = -5

The x term is 25x.  Take half its coefficient (12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
25x + 156.25 + x2 = -5 + 156.25

Reorder the terms:
156.25 + 25x + x2 = -5 + 156.25

Combine like terms: -5 + 156.25 = 151.25
156.25 + 25x + x2 = 151.25

Factor a perfect square on the left side:
(x + 12.5)(x + 12.5) = 151.25

Calculate the square root of the right side: 12.298373876

Break this problem into two subproblems by setting 
(x + 12.5) equal to 12.298373876 and -12.298373876.

Subproblem 1

x + 12.5 = 12.298373876 Simplifying x + 12.5 = 12.298373876 Reorder the terms: 12.5 + x = 12.298373876 Solving 12.5 + x = 12.298373876 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + x = 12.298373876 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + x = 12.298373876 + -12.5 x = 12.298373876 + -12.5 Combine like terms: 12.298373876 + -12.5 = -0.201626124 x = -0.201626124 Simplifying x = -0.201626124

Subproblem 2

x + 12.5 = -12.298373876 Simplifying x + 12.5 = -12.298373876 Reorder the terms: 12.5 + x = -12.298373876 Solving 12.5 + x = -12.298373876 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + x = -12.298373876 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + x = -12.298373876 + -12.5 x = -12.298373876 + -12.5 Combine like terms: -12.298373876 + -12.5 = -24.798373876 x = -24.798373876 Simplifying x = -24.798373876

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.201626124, -24.798373876}

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