3(x^2-6x+9)=x^2+56x-44x

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Solution for 3(x^2-6x+9)=x^2+56x-44x equation:


Simplifying
3(x2 + -6x + 9) = x2 + 56x + -44x

Reorder the terms:
3(9 + -6x + x2) = x2 + 56x + -44x
(9 * 3 + -6x * 3 + x2 * 3) = x2 + 56x + -44x
(27 + -18x + 3x2) = x2 + 56x + -44x

Reorder the terms:
27 + -18x + 3x2 = 56x + -44x + x2

Combine like terms: 56x + -44x = 12x
27 + -18x + 3x2 = 12x + x2

Solving
27 + -18x + 3x2 = 12x + x2

Solving for variable 'x'.

Reorder the terms:
27 + -18x + -12x + 3x2 + -1x2 = 12x + x2 + -12x + -1x2

Combine like terms: -18x + -12x = -30x
27 + -30x + 3x2 + -1x2 = 12x + x2 + -12x + -1x2

Combine like terms: 3x2 + -1x2 = 2x2
27 + -30x + 2x2 = 12x + x2 + -12x + -1x2

Reorder the terms:
27 + -30x + 2x2 = 12x + -12x + x2 + -1x2

Combine like terms: 12x + -12x = 0
27 + -30x + 2x2 = 0 + x2 + -1x2
27 + -30x + 2x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
27 + -30x + 2x2 = 0

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

Divide each side by '2'.
13.5 + -15x + x2 = 0

Move the constant term to the right:

Add '-13.5' to each side of the equation.
13.5 + -15x + -13.5 + x2 = 0 + -13.5

Reorder the terms:
13.5 + -13.5 + -15x + x2 = 0 + -13.5

Combine like terms: 13.5 + -13.5 = 0.0
0.0 + -15x + x2 = 0 + -13.5
-15x + x2 = 0 + -13.5

Combine like terms: 0 + -13.5 = -13.5
-15x + x2 = -13.5

The x term is -15x.  Take half its coefficient (-7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
-15x + 56.25 + x2 = -13.5 + 56.25

Reorder the terms:
56.25 + -15x + x2 = -13.5 + 56.25

Combine like terms: -13.5 + 56.25 = 42.75
56.25 + -15x + x2 = 42.75

Factor a perfect square on the left side:
(x + -7.5)(x + -7.5) = 42.75

Calculate the square root of the right side: 6.538348415

Break this problem into two subproblems by setting 
(x + -7.5) equal to 6.538348415 and -6.538348415.

Subproblem 1

x + -7.5 = 6.538348415 Simplifying x + -7.5 = 6.538348415 Reorder the terms: -7.5 + x = 6.538348415 Solving -7.5 + x = 6.538348415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 6.538348415 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 6.538348415 + 7.5 x = 6.538348415 + 7.5 Combine like terms: 6.538348415 + 7.5 = 14.038348415 x = 14.038348415 Simplifying x = 14.038348415

Subproblem 2

x + -7.5 = -6.538348415 Simplifying x + -7.5 = -6.538348415 Reorder the terms: -7.5 + x = -6.538348415 Solving -7.5 + x = -6.538348415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = -6.538348415 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = -6.538348415 + 7.5 x = -6.538348415 + 7.5 Combine like terms: -6.538348415 + 7.5 = 0.961651585 x = 0.961651585 Simplifying x = 0.961651585

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.038348415, 0.961651585}

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