(2x-6)(2x-6)=23

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Solution for (2x-6)(2x-6)=23 equation:


Simplifying
(2x + -6)(2x + -6) = 23

Reorder the terms:
(-6 + 2x)(2x + -6) = 23

Reorder the terms:
(-6 + 2x)(-6 + 2x) = 23

Multiply (-6 + 2x) * (-6 + 2x)
(-6(-6 + 2x) + 2x * (-6 + 2x)) = 23
((-6 * -6 + 2x * -6) + 2x * (-6 + 2x)) = 23
((36 + -12x) + 2x * (-6 + 2x)) = 23
(36 + -12x + (-6 * 2x + 2x * 2x)) = 23
(36 + -12x + (-12x + 4x2)) = 23

Combine like terms: -12x + -12x = -24x
(36 + -24x + 4x2) = 23

Solving
36 + -24x + 4x2 = 23

Solving for variable 'x'.

Reorder the terms:
36 + -23 + -24x + 4x2 = 23 + -23

Combine like terms: 36 + -23 = 13
13 + -24x + 4x2 = 23 + -23

Combine like terms: 23 + -23 = 0
13 + -24x + 4x2 = 0

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

Divide each side by '4'.
3.25 + -6x + x2 = 0

Move the constant term to the right:

Add '-3.25' to each side of the equation.
3.25 + -6x + -3.25 + x2 = 0 + -3.25

Reorder the terms:
3.25 + -3.25 + -6x + x2 = 0 + -3.25

Combine like terms: 3.25 + -3.25 = 0.00
0.00 + -6x + x2 = 0 + -3.25
-6x + x2 = 0 + -3.25

Combine like terms: 0 + -3.25 = -3.25
-6x + x2 = -3.25

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -3.25 + 9

Reorder the terms:
9 + -6x + x2 = -3.25 + 9

Combine like terms: -3.25 + 9 = 5.75
9 + -6x + x2 = 5.75

Factor a perfect square on the left side:
(x + -3)(x + -3) = 5.75

Calculate the square root of the right side: 2.397915762

Break this problem into two subproblems by setting 
(x + -3) equal to 2.397915762 and -2.397915762.

Subproblem 1

x + -3 = 2.397915762 Simplifying x + -3 = 2.397915762 Reorder the terms: -3 + x = 2.397915762 Solving -3 + x = 2.397915762 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 2.397915762 + 3 Combine like terms: -3 + 3 = 0 0 + x = 2.397915762 + 3 x = 2.397915762 + 3 Combine like terms: 2.397915762 + 3 = 5.397915762 x = 5.397915762 Simplifying x = 5.397915762

Subproblem 2

x + -3 = -2.397915762 Simplifying x + -3 = -2.397915762 Reorder the terms: -3 + x = -2.397915762 Solving -3 + x = -2.397915762 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -2.397915762 + 3 Combine like terms: -3 + 3 = 0 0 + x = -2.397915762 + 3 x = -2.397915762 + 3 Combine like terms: -2.397915762 + 3 = 0.602084238 x = 0.602084238 Simplifying x = 0.602084238

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.397915762, 0.602084238}

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