6x^2-6x=89

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Solution for 6x^2-6x=89 equation:


Simplifying
6x2 + -6x = 89

Reorder the terms:
-6x + 6x2 = 89

Solving
-6x + 6x2 = 89

Solving for variable 'x'.

Reorder the terms:
-89 + -6x + 6x2 = 89 + -89

Combine like terms: 89 + -89 = 0
-89 + -6x + 6x2 = 0

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

Divide each side by '6'.
-14.83333333 + -1x + x2 = 0

Move the constant term to the right:

Add '14.83333333' to each side of the equation.
-14.83333333 + -1x + 14.83333333 + x2 = 0 + 14.83333333

Reorder the terms:
-14.83333333 + 14.83333333 + -1x + x2 = 0 + 14.83333333

Combine like terms: -14.83333333 + 14.83333333 = 0.00000000
0.00000000 + -1x + x2 = 0 + 14.83333333
-1x + x2 = 0 + 14.83333333

Combine like terms: 0 + 14.83333333 = 14.83333333
-1x + x2 = 14.83333333

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 14.83333333 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 14.83333333 + 0.25

Combine like terms: 14.83333333 + 0.25 = 15.08333333
0.25 + -1x + x2 = 15.08333333

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 15.08333333

Calculate the square root of the right side: 3.883726732

Break this problem into two subproblems by setting 
(x + -0.5) equal to 3.883726732 and -3.883726732.

Subproblem 1

x + -0.5 = 3.883726732 Simplifying x + -0.5 = 3.883726732 Reorder the terms: -0.5 + x = 3.883726732 Solving -0.5 + x = 3.883726732 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 3.883726732 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 3.883726732 + 0.5 x = 3.883726732 + 0.5 Combine like terms: 3.883726732 + 0.5 = 4.383726732 x = 4.383726732 Simplifying x = 4.383726732

Subproblem 2

x + -0.5 = -3.883726732 Simplifying x + -0.5 = -3.883726732 Reorder the terms: -0.5 + x = -3.883726732 Solving -0.5 + x = -3.883726732 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -3.883726732 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -3.883726732 + 0.5 x = -3.883726732 + 0.5 Combine like terms: -3.883726732 + 0.5 = -3.383726732 x = -3.383726732 Simplifying x = -3.383726732

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.383726732, -3.383726732}

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