8+8x=4x+-4x(8+1x)

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Solution for 8+8x=4x+-4x(8+1x) equation: 


Simplifying
8 + 8x = 4x + -4x(8 + 1x)
8 + 8x = 4x + (8 * -4x + 1x * -4x)
8 + 8x = 4x + (-32x + -4x2)

Combine like terms: 4x + -32x = -28x
8 + 8x = -28x + -4x2

Solving
8 + 8x = -28x + -4x2

Solving for variable 'x'.

Combine like terms: 8x + 28x = 36x
8 + 36x + 4x2 = -28x + -4x2 + 28x + 4x2

Reorder the terms:
8 + 36x + 4x2 = -28x + 28x + -4x2 + 4x2

Combine like terms: -28x + 28x = 0
8 + 36x + 4x2 = 0 + -4x2 + 4x2
8 + 36x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
8 + 36x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(2 + 9x + x2) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(2 + 9x + x2)' equal to zero and attempt to solve:

Simplifying
2 + 9x + x2 = 0

Solving
2 + 9x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 9x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + 9x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 9x + x2 = 0 + -2
9x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
9x + x2 = -2

The x term is 9x.  Take half its coefficient (4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
9x + 20.25 + x2 = -2 + 20.25

Reorder the terms:
20.25 + 9x + x2 = -2 + 20.25

Combine like terms: -2 + 20.25 = 18.25
20.25 + 9x + x2 = 18.25

Factor a perfect square on the left side:
(x + 4.5)(x + 4.5) = 18.25

Calculate the square root of the right side: 4.272001873

Break this problem into two subproblems by setting 
(x + 4.5) equal to 4.272001873 and -4.272001873.


Subproblem 1
x + 4.5 = 4.272001873

Simplifying
x + 4.5 = 4.272001873

Reorder the terms:
4.5 + x = 4.272001873

Solving
4.5 + x = 4.272001873

Solving for variable 'x'.

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

Add '-4.5' to each side of the equation.
4.5 + -4.5 + x = 4.272001873 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + x = 4.272001873 + -4.5
x = 4.272001873 + -4.5

Combine like terms: 4.272001873 + -4.5 = -0.227998127
x = -0.227998127

Simplifying
x = -0.227998127


Subproblem 2
x + 4.5 = -4.272001873

Simplifying
x + 4.5 = -4.272001873

Reorder the terms:
4.5 + x = -4.272001873

Solving
4.5 + x = -4.272001873

Solving for variable 'x'.

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

Add '-4.5' to each side of the equation.
4.5 + -4.5 + x = -4.272001873 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + x = -4.272001873 + -4.5
x = -4.272001873 + -4.5

Combine like terms: -4.272001873 + -4.5 = -8.772001873
x = -8.772001873

Simplifying
x = -8.772001873


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {-0.227998127, -8.772001873}
Solution
x = {-0.227998127, -8.772001873}

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