2x(3x-3)-3(4x+2)=6

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Solution for 2x(3x-3)-3(4x+2)=6 equation: 


Simplifying
2x(3x + -3) + -3(4x + 2) = 6

Reorder the terms:
2x(-3 + 3x) + -3(4x + 2) = 6
(-3 * 2x + 3x * 2x) + -3(4x + 2) = 6
(-6x + 6x2) + -3(4x + 2) = 6

Reorder the terms:
-6x + 6x2 + -3(2 + 4x) = 6
-6x + 6x2 + (2 * -3 + 4x * -3) = 6
-6x + 6x2 + (-6 + -12x) = 6

Reorder the terms:
-6 + -6x + -12x + 6x2 = 6

Combine like terms: -6x + -12x = -18x
-6 + -18x + 6x2 = 6

Solving
-6 + -18x + 6x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + -6 + -18x + 6x2 = 6 + -6

Combine like terms: -6 + -6 = -12
-12 + -18x + 6x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-12 + -18x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(-2 + -3x + x2) = 0

Ignore the factor 6.

Subproblem 1
Set the factor '(-2 + -3x + x2)' equal to zero and attempt to solve:

Simplifying
-2 + -3x + x2 = 0

Solving
-2 + -3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -3x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -3x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -3x + x2 = 0 + 2
-3x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-3x + x2 = 2

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 2 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 2 + 2.25

Combine like terms: 2 + 2.25 = 4.25
2.25 + -3x + x2 = 4.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 4.25

Calculate the square root of the right side: 2.061552813

Break this problem into two subproblems by setting 
(x + -1.5) equal to 2.061552813 and -2.061552813.


Subproblem 1
x + -1.5 = 2.061552813

Simplifying
x + -1.5 = 2.061552813

Reorder the terms:
-1.5 + x = 2.061552813

Solving
-1.5 + x = 2.061552813

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.5' to each side of the equation.
-1.5 + 1.5 + x = 2.061552813 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + x = 2.061552813 + 1.5
x = 2.061552813 + 1.5

Combine like terms: 2.061552813 + 1.5 = 3.561552813
x = 3.561552813

Simplifying
x = 3.561552813


Subproblem 2
x + -1.5 = -2.061552813

Simplifying
x + -1.5 = -2.061552813

Reorder the terms:
-1.5 + x = -2.061552813

Solving
-1.5 + x = -2.061552813

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.5' to each side of the equation.
-1.5 + 1.5 + x = -2.061552813 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + x = -2.061552813 + 1.5
x = -2.061552813 + 1.5

Combine like terms: -2.061552813 + 1.5 = -0.561552813
x = -0.561552813

Simplifying
x = -0.561552813


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {3.561552813, -0.561552813}
Solution
x = {3.561552813, -0.561552813}

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