64x^2-128x+9=0

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Solution for 64x^2-128x+9=0 equation:


Simplifying
64x2 + -128x + 9 = 0

Reorder the terms:
9 + -128x + 64x2 = 0

Solving
9 + -128x + 64x2 = 0

Solving for variable 'x'.

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

Divide each side by '64'.
0.140625 + -2x + x2 = 0

Move the constant term to the right:

Add '-0.140625' to each side of the equation.
0.140625 + -2x + -0.140625 + x2 = 0 + -0.140625

Reorder the terms:
0.140625 + -0.140625 + -2x + x2 = 0 + -0.140625

Combine like terms: 0.140625 + -0.140625 = 0.000000
0.000000 + -2x + x2 = 0 + -0.140625
-2x + x2 = 0 + -0.140625

Combine like terms: 0 + -0.140625 = -0.140625
-2x + x2 = -0.140625

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -0.140625 + 1

Reorder the terms:
1 + -2x + x2 = -0.140625 + 1

Combine like terms: -0.140625 + 1 = 0.859375
1 + -2x + x2 = 0.859375

Factor a perfect square on the left side:
(x + -1)(x + -1) = 0.859375

Calculate the square root of the right side: 0.927024811

Break this problem into two subproblems by setting 
(x + -1) equal to 0.927024811 and -0.927024811.

Subproblem 1

x + -1 = 0.927024811 Simplifying x + -1 = 0.927024811 Reorder the terms: -1 + x = 0.927024811 Solving -1 + x = 0.927024811 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 0.927024811 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0.927024811 + 1 x = 0.927024811 + 1 Combine like terms: 0.927024811 + 1 = 1.927024811 x = 1.927024811 Simplifying x = 1.927024811

Subproblem 2

x + -1 = -0.927024811 Simplifying x + -1 = -0.927024811 Reorder the terms: -1 + x = -0.927024811 Solving -1 + x = -0.927024811 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -0.927024811 + 1 Combine like terms: -1 + 1 = 0 0 + x = -0.927024811 + 1 x = -0.927024811 + 1 Combine like terms: -0.927024811 + 1 = 0.072975189 x = 0.072975189 Simplifying x = 0.072975189

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.927024811, 0.072975189}

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