169x^2-356x+144=0

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Solution for 169x^2-356x+144=0 equation:


Simplifying
169x2 + -356x + 144 = 0

Reorder the terms:
144 + -356x + 169x2 = 0

Solving
144 + -356x + 169x2 = 0

Solving for variable 'x'.

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

Divide each side by '169'.
0.8520710059 + -2.106508876x + x2 = 0

Move the constant term to the right:

Add '-0.8520710059' to each side of the equation.
0.8520710059 + -2.106508876x + -0.8520710059 + x2 = 0 + -0.8520710059

Reorder the terms:
0.8520710059 + -0.8520710059 + -2.106508876x + x2 = 0 + -0.8520710059

Combine like terms: 0.8520710059 + -0.8520710059 = 0.0000000000
0.0000000000 + -2.106508876x + x2 = 0 + -0.8520710059
-2.106508876x + x2 = 0 + -0.8520710059

Combine like terms: 0 + -0.8520710059 = -0.8520710059
-2.106508876x + x2 = -0.8520710059

The x term is -2.106508876x.  Take half its coefficient (-1.053254438).
Square it (1.109344911) and add it to both sides.

Add '1.109344911' to each side of the equation.
-2.106508876x + 1.109344911 + x2 = -0.8520710059 + 1.109344911

Reorder the terms:
1.109344911 + -2.106508876x + x2 = -0.8520710059 + 1.109344911

Combine like terms: -0.8520710059 + 1.109344911 = 0.2572739051
1.109344911 + -2.106508876x + x2 = 0.2572739051

Factor a perfect square on the left side:
(x + -1.053254438)(x + -1.053254438) = 0.2572739051

Calculate the square root of the right side: 0.507221751

Break this problem into two subproblems by setting 
(x + -1.053254438) equal to 0.507221751 and -0.507221751.

Subproblem 1

x + -1.053254438 = 0.507221751 Simplifying x + -1.053254438 = 0.507221751 Reorder the terms: -1.053254438 + x = 0.507221751 Solving -1.053254438 + x = 0.507221751 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.053254438' to each side of the equation. -1.053254438 + 1.053254438 + x = 0.507221751 + 1.053254438 Combine like terms: -1.053254438 + 1.053254438 = 0.000000000 0.000000000 + x = 0.507221751 + 1.053254438 x = 0.507221751 + 1.053254438 Combine like terms: 0.507221751 + 1.053254438 = 1.560476189 x = 1.560476189 Simplifying x = 1.560476189

Subproblem 2

x + -1.053254438 = -0.507221751 Simplifying x + -1.053254438 = -0.507221751 Reorder the terms: -1.053254438 + x = -0.507221751 Solving -1.053254438 + x = -0.507221751 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.053254438' to each side of the equation. -1.053254438 + 1.053254438 + x = -0.507221751 + 1.053254438 Combine like terms: -1.053254438 + 1.053254438 = 0.000000000 0.000000000 + x = -0.507221751 + 1.053254438 x = -0.507221751 + 1.053254438 Combine like terms: -0.507221751 + 1.053254438 = 0.546032687 x = 0.546032687 Simplifying x = 0.546032687

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.560476189, 0.546032687}

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