.11111111111x^2-13x+324=0

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Solution for .11111111111x^2-13x+324=0 equation:


Simplifying
0.11111111111x2 + -13x + 324 = 0

Reorder the terms:
324 + -13x + 0.11111111111x2 = 0

Solving
324 + -13x + 0.11111111111x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
0.11111111111 the coefficient of the squared term: 

Divide each side by '0.11111111111'.
2916 + -117x + x2 = 0

Move the constant term to the right:

Add '-2916' to each side of the equation.
2916 + -117x + -2916 + x2 = 0 + -2916

Reorder the terms:
2916 + -2916 + -117x + x2 = 0 + -2916

Combine like terms: 2916 + -2916 = 0
0 + -117x + x2 = 0 + -2916
-117x + x2 = 0 + -2916

Combine like terms: 0 + -2916 = -2916
-117x + x2 = -2916

The x term is -117x.  Take half its coefficient (-58.5).
Square it (3422.25) and add it to both sides.

Add '3422.25' to each side of the equation.
-117x + 3422.25 + x2 = -2916 + 3422.25

Reorder the terms:
3422.25 + -117x + x2 = -2916 + 3422.25

Combine like terms: -2916 + 3422.25 = 506.25
3422.25 + -117x + x2 = 506.25

Factor a perfect square on the left side:
(x + -58.5)(x + -58.5) = 506.25

Calculate the square root of the right side: 22.5

Break this problem into two subproblems by setting 
(x + -58.5) equal to 22.5 and -22.5.

Subproblem 1

x + -58.5 = 22.5 Simplifying x + -58.5 = 22.5 Reorder the terms: -58.5 + x = 22.5 Solving -58.5 + x = 22.5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '58.5' to each side of the equation. -58.5 + 58.5 + x = 22.5 + 58.5 Combine like terms: -58.5 + 58.5 = 0.0 0.0 + x = 22.5 + 58.5 x = 22.5 + 58.5 Combine like terms: 22.5 + 58.5 = 81 x = 81 Simplifying x = 81

Subproblem 2

x + -58.5 = -22.5 Simplifying x + -58.5 = -22.5 Reorder the terms: -58.5 + x = -22.5 Solving -58.5 + x = -22.5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '58.5' to each side of the equation. -58.5 + 58.5 + x = -22.5 + 58.5 Combine like terms: -58.5 + 58.5 = 0.0 0.0 + x = -22.5 + 58.5 x = -22.5 + 58.5 Combine like terms: -22.5 + 58.5 = 36 x = 36 Simplifying x = 36

Solution

The solution to the problem is based on the solutions from the subproblems. x = {81, 36}

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