64x^2-116x+9=0

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Solution for 64x^2-116x+9=0 equation:


Simplifying
64x2 + -116x + 9 = 0

Reorder the terms:
9 + -116x + 64x2 = 0

Solving
9 + -116x + 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 + -1.8125x + x2 = 0

Move the constant term to the right:

Add '-0.140625' to each side of the equation.
0.140625 + -1.8125x + -0.140625 + x2 = 0 + -0.140625

Reorder the terms:
0.140625 + -0.140625 + -1.8125x + x2 = 0 + -0.140625

Combine like terms: 0.140625 + -0.140625 = 0.000000
0.000000 + -1.8125x + x2 = 0 + -0.140625
-1.8125x + x2 = 0 + -0.140625

Combine like terms: 0 + -0.140625 = -0.140625
-1.8125x + x2 = -0.140625

The x term is -1.8125x.  Take half its coefficient (-0.90625).
Square it (0.8212890625) and add it to both sides.

Add '0.8212890625' to each side of the equation.
-1.8125x + 0.8212890625 + x2 = -0.140625 + 0.8212890625

Reorder the terms:
0.8212890625 + -1.8125x + x2 = -0.140625 + 0.8212890625

Combine like terms: -0.140625 + 0.8212890625 = 0.6806640625
0.8212890625 + -1.8125x + x2 = 0.6806640625

Factor a perfect square on the left side:
(x + -0.90625)(x + -0.90625) = 0.6806640625

Calculate the square root of the right side: 0.825023674

Break this problem into two subproblems by setting 
(x + -0.90625) equal to 0.825023674 and -0.825023674.

Subproblem 1

x + -0.90625 = 0.825023674 Simplifying x + -0.90625 = 0.825023674 Reorder the terms: -0.90625 + x = 0.825023674 Solving -0.90625 + x = 0.825023674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.90625' to each side of the equation. -0.90625 + 0.90625 + x = 0.825023674 + 0.90625 Combine like terms: -0.90625 + 0.90625 = 0.00000 0.00000 + x = 0.825023674 + 0.90625 x = 0.825023674 + 0.90625 Combine like terms: 0.825023674 + 0.90625 = 1.731273674 x = 1.731273674 Simplifying x = 1.731273674

Subproblem 2

x + -0.90625 = -0.825023674 Simplifying x + -0.90625 = -0.825023674 Reorder the terms: -0.90625 + x = -0.825023674 Solving -0.90625 + x = -0.825023674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.90625' to each side of the equation. -0.90625 + 0.90625 + x = -0.825023674 + 0.90625 Combine like terms: -0.90625 + 0.90625 = 0.00000 0.00000 + x = -0.825023674 + 0.90625 x = -0.825023674 + 0.90625 Combine like terms: -0.825023674 + 0.90625 = 0.081226326 x = 0.081226326 Simplifying x = 0.081226326

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.731273674, 0.081226326}

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