0=2x^2-8x+0.25

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Solution for 0=2x^2-8x+0.25 equation:


Simplifying
0 = 2x2 + -8x + 0.25

Reorder the terms:
0 = 0.25 + -8x + 2x2

Solving
0 = 0.25 + -8x + 2x2

Solving for variable 'x'.

Combine like terms: 0 + -0.25 = -0.25
-0.25 + 8x + -2x2 = 0.25 + -8x + 2x2 + -0.25 + 8x + -2x2

Reorder the terms:
-0.25 + 8x + -2x2 = 0.25 + -0.25 + -8x + 8x + 2x2 + -2x2

Combine like terms: 0.25 + -0.25 = 0.00
-0.25 + 8x + -2x2 = 0.00 + -8x + 8x + 2x2 + -2x2
-0.25 + 8x + -2x2 = -8x + 8x + 2x2 + -2x2

Combine like terms: -8x + 8x = 0
-0.25 + 8x + -2x2 = 0 + 2x2 + -2x2
-0.25 + 8x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-0.25 + 8x + -2x2 = 0

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

Divide each side by '-2'.
0.125 + -4x + x2 = 0

Move the constant term to the right:

Add '-0.125' to each side of the equation.
0.125 + -4x + -0.125 + x2 = 0 + -0.125

Reorder the terms:
0.125 + -0.125 + -4x + x2 = 0 + -0.125

Combine like terms: 0.125 + -0.125 = 0.000
0.000 + -4x + x2 = 0 + -0.125
-4x + x2 = 0 + -0.125

Combine like terms: 0 + -0.125 = -0.125
-4x + x2 = -0.125

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -0.125 + 4

Reorder the terms:
4 + -4x + x2 = -0.125 + 4

Combine like terms: -0.125 + 4 = 3.875
4 + -4x + x2 = 3.875

Factor a perfect square on the left side:
(x + -2)(x + -2) = 3.875

Calculate the square root of the right side: 1.968501969

Break this problem into two subproblems by setting 
(x + -2) equal to 1.968501969 and -1.968501969.

Subproblem 1

x + -2 = 1.968501969 Simplifying x + -2 = 1.968501969 Reorder the terms: -2 + x = 1.968501969 Solving -2 + x = 1.968501969 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 1.968501969 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1.968501969 + 2 x = 1.968501969 + 2 Combine like terms: 1.968501969 + 2 = 3.968501969 x = 3.968501969 Simplifying x = 3.968501969

Subproblem 2

x + -2 = -1.968501969 Simplifying x + -2 = -1.968501969 Reorder the terms: -2 + x = -1.968501969 Solving -2 + x = -1.968501969 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -1.968501969 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1.968501969 + 2 x = -1.968501969 + 2 Combine like terms: -1.968501969 + 2 = 0.031498031 x = 0.031498031 Simplifying x = 0.031498031

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.968501969, 0.031498031}

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