62x^2-128x+64=9

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Solution for 62x^2-128x+64=9 equation:


Simplifying
62x2 + -128x + 64 = 9

Reorder the terms:
64 + -128x + 62x2 = 9

Solving
64 + -128x + 62x2 = 9

Solving for variable 'x'.

Reorder the terms:
64 + -9 + -128x + 62x2 = 9 + -9

Combine like terms: 64 + -9 = 55
55 + -128x + 62x2 = 9 + -9

Combine like terms: 9 + -9 = 0
55 + -128x + 62x2 = 0

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

Divide each side by '62'.
0.8870967742 + -2.064516129x + x2 = 0

Move the constant term to the right:

Add '-0.8870967742' to each side of the equation.
0.8870967742 + -2.064516129x + -0.8870967742 + x2 = 0 + -0.8870967742

Reorder the terms:
0.8870967742 + -0.8870967742 + -2.064516129x + x2 = 0 + -0.8870967742

Combine like terms: 0.8870967742 + -0.8870967742 = 0.0000000000
0.0000000000 + -2.064516129x + x2 = 0 + -0.8870967742
-2.064516129x + x2 = 0 + -0.8870967742

Combine like terms: 0 + -0.8870967742 = -0.8870967742
-2.064516129x + x2 = -0.8870967742

The x term is -2.064516129x.  Take half its coefficient (-1.032258065).
Square it (1.065556713) and add it to both sides.

Add '1.065556713' to each side of the equation.
-2.064516129x + 1.065556713 + x2 = -0.8870967742 + 1.065556713

Reorder the terms:
1.065556713 + -2.064516129x + x2 = -0.8870967742 + 1.065556713

Combine like terms: -0.8870967742 + 1.065556713 = 0.1784599388
1.065556713 + -2.064516129x + x2 = 0.1784599388

Factor a perfect square on the left side:
(x + -1.032258065)(x + -1.032258065) = 0.1784599388

Calculate the square root of the right side: 0.42244519

Break this problem into two subproblems by setting 
(x + -1.032258065) equal to 0.42244519 and -0.42244519.

Subproblem 1

x + -1.032258065 = 0.42244519 Simplifying x + -1.032258065 = 0.42244519 Reorder the terms: -1.032258065 + x = 0.42244519 Solving -1.032258065 + x = 0.42244519 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.032258065' to each side of the equation. -1.032258065 + 1.032258065 + x = 0.42244519 + 1.032258065 Combine like terms: -1.032258065 + 1.032258065 = 0.000000000 0.000000000 + x = 0.42244519 + 1.032258065 x = 0.42244519 + 1.032258065 Combine like terms: 0.42244519 + 1.032258065 = 1.454703255 x = 1.454703255 Simplifying x = 1.454703255

Subproblem 2

x + -1.032258065 = -0.42244519 Simplifying x + -1.032258065 = -0.42244519 Reorder the terms: -1.032258065 + x = -0.42244519 Solving -1.032258065 + x = -0.42244519 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.032258065' to each side of the equation. -1.032258065 + 1.032258065 + x = -0.42244519 + 1.032258065 Combine like terms: -1.032258065 + 1.032258065 = 0.000000000 0.000000000 + x = -0.42244519 + 1.032258065 x = -0.42244519 + 1.032258065 Combine like terms: -0.42244519 + 1.032258065 = 0.609812875 x = 0.609812875 Simplifying x = 0.609812875

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.454703255, 0.609812875}

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