2x^2+20x-5525=0

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Solution for 2x^2+20x-5525=0 equation:


Simplifying
2x2 + 20x + -5525 = 0

Reorder the terms:
-5525 + 20x + 2x2 = 0

Solving
-5525 + 20x + 2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-2762.5 + 10x + x2 = 0

Move the constant term to the right:

Add '2762.5' to each side of the equation.
-2762.5 + 10x + 2762.5 + x2 = 0 + 2762.5

Reorder the terms:
-2762.5 + 2762.5 + 10x + x2 = 0 + 2762.5

Combine like terms: -2762.5 + 2762.5 = 0.0
0.0 + 10x + x2 = 0 + 2762.5
10x + x2 = 0 + 2762.5

Combine like terms: 0 + 2762.5 = 2762.5
10x + x2 = 2762.5

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = 2762.5 + 25

Reorder the terms:
25 + 10x + x2 = 2762.5 + 25

Combine like terms: 2762.5 + 25 = 2787.5
25 + 10x + x2 = 2787.5

Factor a perfect square on the left side:
(x + 5)(x + 5) = 2787.5

Calculate the square root of the right side: 52.796780205

Break this problem into two subproblems by setting 
(x + 5) equal to 52.796780205 and -52.796780205.

Subproblem 1

x + 5 = 52.796780205 Simplifying x + 5 = 52.796780205 Reorder the terms: 5 + x = 52.796780205 Solving 5 + x = 52.796780205 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 52.796780205 + -5 Combine like terms: 5 + -5 = 0 0 + x = 52.796780205 + -5 x = 52.796780205 + -5 Combine like terms: 52.796780205 + -5 = 47.796780205 x = 47.796780205 Simplifying x = 47.796780205

Subproblem 2

x + 5 = -52.796780205 Simplifying x + 5 = -52.796780205 Reorder the terms: 5 + x = -52.796780205 Solving 5 + x = -52.796780205 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -52.796780205 + -5 Combine like terms: 5 + -5 = 0 0 + x = -52.796780205 + -5 x = -52.796780205 + -5 Combine like terms: -52.796780205 + -5 = -57.796780205 x = -57.796780205 Simplifying x = -57.796780205

Solution

The solution to the problem is based on the solutions from the subproblems. x = {47.796780205, -57.796780205}

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