x^2+181x=11

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Solution for x^2+181x=11 equation:


Simplifying
x2 + 181x = 11

Reorder the terms:
181x + x2 = 11

Solving
181x + x2 = 11

Solving for variable 'x'.

Reorder the terms:
-11 + 181x + x2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + 181x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + 181x + 11 + x2 = 0 + 11

Reorder the terms:
-11 + 11 + 181x + x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 181x + x2 = 0 + 11
181x + x2 = 0 + 11

Combine like terms: 0 + 11 = 11
181x + x2 = 11

The x term is 181x.  Take half its coefficient (90.5).
Square it (8190.25) and add it to both sides.

Add '8190.25' to each side of the equation.
181x + 8190.25 + x2 = 11 + 8190.25

Reorder the terms:
8190.25 + 181x + x2 = 11 + 8190.25

Combine like terms: 11 + 8190.25 = 8201.25
8190.25 + 181x + x2 = 8201.25

Factor a perfect square on the left side:
(x + 90.5)(x + 90.5) = 8201.25

Calculate the square root of the right side: 90.560753089

Break this problem into two subproblems by setting 
(x + 90.5) equal to 90.560753089 and -90.560753089.

Subproblem 1

x + 90.5 = 90.560753089 Simplifying x + 90.5 = 90.560753089 Reorder the terms: 90.5 + x = 90.560753089 Solving 90.5 + x = 90.560753089 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-90.5' to each side of the equation. 90.5 + -90.5 + x = 90.560753089 + -90.5 Combine like terms: 90.5 + -90.5 = 0.0 0.0 + x = 90.560753089 + -90.5 x = 90.560753089 + -90.5 Combine like terms: 90.560753089 + -90.5 = 0.060753089 x = 0.060753089 Simplifying x = 0.060753089

Subproblem 2

x + 90.5 = -90.560753089 Simplifying x + 90.5 = -90.560753089 Reorder the terms: 90.5 + x = -90.560753089 Solving 90.5 + x = -90.560753089 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-90.5' to each side of the equation. 90.5 + -90.5 + x = -90.560753089 + -90.5 Combine like terms: 90.5 + -90.5 = 0.0 0.0 + x = -90.560753089 + -90.5 x = -90.560753089 + -90.5 Combine like terms: -90.560753089 + -90.5 = -181.060753089 x = -181.060753089 Simplifying x = -181.060753089

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.060753089, -181.060753089}

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