6x^2-66x+181=0

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Solution for 6x^2-66x+181=0 equation:


Simplifying
6x2 + -66x + 181 = 0

Reorder the terms:
181 + -66x + 6x2 = 0

Solving
181 + -66x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
30.16666667 + -11x + x2 = 0

Move the constant term to the right:

Add '-30.16666667' to each side of the equation.
30.16666667 + -11x + -30.16666667 + x2 = 0 + -30.16666667

Reorder the terms:
30.16666667 + -30.16666667 + -11x + x2 = 0 + -30.16666667

Combine like terms: 30.16666667 + -30.16666667 = 0.00000000
0.00000000 + -11x + x2 = 0 + -30.16666667
-11x + x2 = 0 + -30.16666667

Combine like terms: 0 + -30.16666667 = -30.16666667
-11x + x2 = -30.16666667

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = -30.16666667 + 30.25

Reorder the terms:
30.25 + -11x + x2 = -30.16666667 + 30.25

Combine like terms: -30.16666667 + 30.25 = 0.08333333
30.25 + -11x + x2 = 0.08333333

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 0.08333333

Calculate the square root of the right side: 0.288675129

Break this problem into two subproblems by setting 
(x + -5.5) equal to 0.288675129 and -0.288675129.

Subproblem 1

x + -5.5 = 0.288675129 Simplifying x + -5.5 = 0.288675129 Reorder the terms: -5.5 + x = 0.288675129 Solving -5.5 + x = 0.288675129 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 0.288675129 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 0.288675129 + 5.5 x = 0.288675129 + 5.5 Combine like terms: 0.288675129 + 5.5 = 5.788675129 x = 5.788675129 Simplifying x = 5.788675129

Subproblem 2

x + -5.5 = -0.288675129 Simplifying x + -5.5 = -0.288675129 Reorder the terms: -5.5 + x = -0.288675129 Solving -5.5 + x = -0.288675129 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -0.288675129 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -0.288675129 + 5.5 x = -0.288675129 + 5.5 Combine like terms: -0.288675129 + 5.5 = 5.211324871 x = 5.211324871 Simplifying x = 5.211324871

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.788675129, 5.211324871}

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