8x^2=2-4x

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Solution for 8x^2=2-4x equation: 


Simplifying
8x2 = 2 + -4x

Solving
8x2 = 2 + -4x

Solving for variable 'x'.

Reorder the terms:
-2 + 4x + 8x2 = 2 + -4x + -2 + 4x

Reorder the terms:
-2 + 4x + 8x2 = 2 + -2 + -4x + 4x

Combine like terms: 2 + -2 = 0
-2 + 4x + 8x2 = 0 + -4x + 4x
-2 + 4x + 8x2 = -4x + 4x

Combine like terms: -4x + 4x = 0
-2 + 4x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-1 + 2x + 4x2) = 0

Ignore the factor 2.

Subproblem 1
Set the factor '(-1 + 2x + 4x2)' equal to zero and attempt to solve:

Simplifying
-1 + 2x + 4x2 = 0

Solving
-1 + 2x + 4x2 = 0

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

Divide each side by '4'.
-0.25 + 0.5x + x2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + 0.5x + 0.25 + x2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + 0.5x + x2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 0.5x + x2 = 0 + 0.25
0.5x + x2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
0.5x + x2 = 0.25

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 0.25 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 0.25 + 0.0625

Combine like terms: 0.25 + 0.0625 = 0.3125
0.0625 + 0.5x + x2 = 0.3125

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 0.3125

Calculate the square root of the right side: 0.559016994

Break this problem into two subproblems by setting 
(x + 0.25) equal to 0.559016994 and -0.559016994.


Subproblem 1
x + 0.25 = 0.559016994

Simplifying
x + 0.25 = 0.559016994

Reorder the terms:
0.25 + x = 0.559016994

Solving
0.25 + x = 0.559016994

Solving for variable 'x'.

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

Add '-0.25' to each side of the equation.
0.25 + -0.25 + x = 0.559016994 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + x = 0.559016994 + -0.25
x = 0.559016994 + -0.25

Combine like terms: 0.559016994 + -0.25 = 0.309016994
x = 0.309016994

Simplifying
x = 0.309016994


Subproblem 2
x + 0.25 = -0.559016994

Simplifying
x + 0.25 = -0.559016994

Reorder the terms:
0.25 + x = -0.559016994

Solving
0.25 + x = -0.559016994

Solving for variable 'x'.

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

Add '-0.25' to each side of the equation.
0.25 + -0.25 + x = -0.559016994 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + x = -0.559016994 + -0.25
x = -0.559016994 + -0.25

Combine like terms: -0.559016994 + -0.25 = -0.809016994
x = -0.809016994

Simplifying
x = -0.809016994


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {0.309016994, -0.809016994}
Solution
x = {0.309016994, -0.809016994}

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