4x^2-4x+.75=0

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Solution for 4x^2-4x+.75=0 equation:


Simplifying
4x2 + -4x + 0.75 = 0

Reorder the terms:
0.75 + -4x + 4x2 = 0

Solving
0.75 + -4x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
0.1875 + -1x + x2 = 0

Move the constant term to the right:

Add '-0.1875' to each side of the equation.
0.1875 + -1x + -0.1875 + x2 = 0 + -0.1875

Reorder the terms:
0.1875 + -0.1875 + -1x + x2 = 0 + -0.1875

Combine like terms: 0.1875 + -0.1875 = 0.0000
0.0000 + -1x + x2 = 0 + -0.1875
-1x + x2 = 0 + -0.1875

Combine like terms: 0 + -0.1875 = -0.1875
-1x + x2 = -0.1875

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -0.1875 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -0.1875 + 0.25

Combine like terms: -0.1875 + 0.25 = 0.0625
0.25 + -1x + x2 = 0.0625

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 0.0625

Calculate the square root of the right side: 0.25

Break this problem into two subproblems by setting 
(x + -0.5) equal to 0.25 and -0.25.

Subproblem 1

x + -0.5 = 0.25 Simplifying x + -0.5 = 0.25 Reorder the terms: -0.5 + x = 0.25 Solving -0.5 + x = 0.25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 0.25 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.25 + 0.5 x = 0.25 + 0.5 Combine like terms: 0.25 + 0.5 = 0.75 x = 0.75 Simplifying x = 0.75

Subproblem 2

x + -0.5 = -0.25 Simplifying x + -0.5 = -0.25 Reorder the terms: -0.5 + x = -0.25 Solving -0.5 + x = -0.25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -0.25 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.25 + 0.5 x = -0.25 + 0.5 Combine like terms: -0.25 + 0.5 = 0.25 x = 0.25 Simplifying x = 0.25

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.75, 0.25}

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