4x^2-6x+.5625=0

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Solution for 4x^2-6x+.5625=0 equation:


Simplifying
4x2 + -6x + 0.5625 = 0

Reorder the terms:
0.5625 + -6x + 4x2 = 0

Solving
0.5625 + -6x + 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'.
0.140625 + -1.5x + x2 = 0

Move the constant term to the right:

Add '-0.140625' to each side of the equation.
0.140625 + -1.5x + -0.140625 + x2 = 0 + -0.140625

Reorder the terms:
0.140625 + -0.140625 + -1.5x + x2 = 0 + -0.140625

Combine like terms: 0.140625 + -0.140625 = 0.000000
0.000000 + -1.5x + x2 = 0 + -0.140625
-1.5x + x2 = 0 + -0.140625

Combine like terms: 0 + -0.140625 = -0.140625
-1.5x + x2 = -0.140625

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = -0.140625 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = -0.140625 + 0.5625

Combine like terms: -0.140625 + 0.5625 = 0.421875
0.5625 + -1.5x + x2 = 0.421875

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 0.421875

Calculate the square root of the right side: 0.649519053

Break this problem into two subproblems by setting 
(x + -0.75) equal to 0.649519053 and -0.649519053.

Subproblem 1

x + -0.75 = 0.649519053 Simplifying x + -0.75 = 0.649519053 Reorder the terms: -0.75 + x = 0.649519053 Solving -0.75 + x = 0.649519053 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 0.649519053 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 0.649519053 + 0.75 x = 0.649519053 + 0.75 Combine like terms: 0.649519053 + 0.75 = 1.399519053 x = 1.399519053 Simplifying x = 1.399519053

Subproblem 2

x + -0.75 = -0.649519053 Simplifying x + -0.75 = -0.649519053 Reorder the terms: -0.75 + x = -0.649519053 Solving -0.75 + x = -0.649519053 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -0.649519053 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -0.649519053 + 0.75 x = -0.649519053 + 0.75 Combine like terms: -0.649519053 + 0.75 = 0.100480947 x = 0.100480947 Simplifying x = 0.100480947

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.399519053, 0.100480947}

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