11x^2+55x-13000=0

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Solution for 11x^2+55x-13000=0 equation:


Simplifying
11x2 + 55x + -13000 = 0

Reorder the terms:
-13000 + 55x + 11x2 = 0

Solving
-13000 + 55x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
-1181.818182 + 5x + x2 = 0

Move the constant term to the right:

Add '1181.818182' to each side of the equation.
-1181.818182 + 5x + 1181.818182 + x2 = 0 + 1181.818182

Reorder the terms:
-1181.818182 + 1181.818182 + 5x + x2 = 0 + 1181.818182

Combine like terms: -1181.818182 + 1181.818182 = 0.000000
0.000000 + 5x + x2 = 0 + 1181.818182
5x + x2 = 0 + 1181.818182

Combine like terms: 0 + 1181.818182 = 1181.818182
5x + x2 = 1181.818182

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = 1181.818182 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 1181.818182 + 6.25

Combine like terms: 1181.818182 + 6.25 = 1188.068182
6.25 + 5x + x2 = 1188.068182

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 1188.068182

Calculate the square root of the right side: 34.468364945

Break this problem into two subproblems by setting 
(x + 2.5) equal to 34.468364945 and -34.468364945.

Subproblem 1

x + 2.5 = 34.468364945 Simplifying x + 2.5 = 34.468364945 Reorder the terms: 2.5 + x = 34.468364945 Solving 2.5 + x = 34.468364945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 34.468364945 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 34.468364945 + -2.5 x = 34.468364945 + -2.5 Combine like terms: 34.468364945 + -2.5 = 31.968364945 x = 31.968364945 Simplifying x = 31.968364945

Subproblem 2

x + 2.5 = -34.468364945 Simplifying x + 2.5 = -34.468364945 Reorder the terms: 2.5 + x = -34.468364945 Solving 2.5 + x = -34.468364945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -34.468364945 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -34.468364945 + -2.5 x = -34.468364945 + -2.5 Combine like terms: -34.468364945 + -2.5 = -36.968364945 x = -36.968364945 Simplifying x = -36.968364945

Solution

The solution to the problem is based on the solutions from the subproblems. x = {31.968364945, -36.968364945}

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