x^2+55x+2=0

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Solution for x^2+55x+2=0 equation:


Simplifying
x2 + 55x + 2 = 0

Reorder the terms:
2 + 55x + x2 = 0

Solving
2 + 55x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 55x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + 55x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 55x + x2 = 0 + -2
55x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
55x + x2 = -2

The x term is 55x.  Take half its coefficient (27.5).
Square it (756.25) and add it to both sides.

Add '756.25' to each side of the equation.
55x + 756.25 + x2 = -2 + 756.25

Reorder the terms:
756.25 + 55x + x2 = -2 + 756.25

Combine like terms: -2 + 756.25 = 754.25
756.25 + 55x + x2 = 754.25

Factor a perfect square on the left side:
(x + 27.5)(x + 27.5) = 754.25

Calculate the square root of the right side: 27.46361229

Break this problem into two subproblems by setting 
(x + 27.5) equal to 27.46361229 and -27.46361229.

Subproblem 1

x + 27.5 = 27.46361229 Simplifying x + 27.5 = 27.46361229 Reorder the terms: 27.5 + x = 27.46361229 Solving 27.5 + x = 27.46361229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-27.5' to each side of the equation. 27.5 + -27.5 + x = 27.46361229 + -27.5 Combine like terms: 27.5 + -27.5 = 0.0 0.0 + x = 27.46361229 + -27.5 x = 27.46361229 + -27.5 Combine like terms: 27.46361229 + -27.5 = -0.03638771 x = -0.03638771 Simplifying x = -0.03638771

Subproblem 2

x + 27.5 = -27.46361229 Simplifying x + 27.5 = -27.46361229 Reorder the terms: 27.5 + x = -27.46361229 Solving 27.5 + x = -27.46361229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-27.5' to each side of the equation. 27.5 + -27.5 + x = -27.46361229 + -27.5 Combine like terms: 27.5 + -27.5 = 0.0 0.0 + x = -27.46361229 + -27.5 x = -27.46361229 + -27.5 Combine like terms: -27.46361229 + -27.5 = -54.96361229 x = -54.96361229 Simplifying x = -54.96361229

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.03638771, -54.96361229}

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