0=9x^2-52x+4

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Solution for 0=9x^2-52x+4 equation:


Simplifying
0 = 9x2 + -52x + 4

Reorder the terms:
0 = 4 + -52x + 9x2

Solving
0 = 4 + -52x + 9x2

Solving for variable 'x'.

Combine like terms: 0 + -4 = -4
-4 + 52x + -9x2 = 4 + -52x + 9x2 + -4 + 52x + -9x2

Reorder the terms:
-4 + 52x + -9x2 = 4 + -4 + -52x + 52x + 9x2 + -9x2

Combine like terms: 4 + -4 = 0
-4 + 52x + -9x2 = 0 + -52x + 52x + 9x2 + -9x2
-4 + 52x + -9x2 = -52x + 52x + 9x2 + -9x2

Combine like terms: -52x + 52x = 0
-4 + 52x + -9x2 = 0 + 9x2 + -9x2
-4 + 52x + -9x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
-4 + 52x + -9x2 = 0

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
0.4444444444 + -5.777777778x + x2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + -5.777777778x + -0.4444444444 + x2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + -5.777777778x + x2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + -5.777777778x + x2 = 0 + -0.4444444444
-5.777777778x + x2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
-5.777777778x + x2 = -0.4444444444

The x term is -5.777777778x.  Take half its coefficient (-2.888888889).
Square it (8.345679013) and add it to both sides.

Add '8.345679013' to each side of the equation.
-5.777777778x + 8.345679013 + x2 = -0.4444444444 + 8.345679013

Reorder the terms:
8.345679013 + -5.777777778x + x2 = -0.4444444444 + 8.345679013

Combine like terms: -0.4444444444 + 8.345679013 = 7.9012345686
8.345679013 + -5.777777778x + x2 = 7.9012345686

Factor a perfect square on the left side:
(x + -2.888888889)(x + -2.888888889) = 7.9012345686

Calculate the square root of the right side: 2.810913476

Break this problem into two subproblems by setting 
(x + -2.888888889) equal to 2.810913476 and -2.810913476.

Subproblem 1

x + -2.888888889 = 2.810913476 Simplifying x + -2.888888889 = 2.810913476 Reorder the terms: -2.888888889 + x = 2.810913476 Solving -2.888888889 + x = 2.810913476 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.888888889' to each side of the equation. -2.888888889 + 2.888888889 + x = 2.810913476 + 2.888888889 Combine like terms: -2.888888889 + 2.888888889 = 0.000000000 0.000000000 + x = 2.810913476 + 2.888888889 x = 2.810913476 + 2.888888889 Combine like terms: 2.810913476 + 2.888888889 = 5.699802365 x = 5.699802365 Simplifying x = 5.699802365

Subproblem 2

x + -2.888888889 = -2.810913476 Simplifying x + -2.888888889 = -2.810913476 Reorder the terms: -2.888888889 + x = -2.810913476 Solving -2.888888889 + x = -2.810913476 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.888888889' to each side of the equation. -2.888888889 + 2.888888889 + x = -2.810913476 + 2.888888889 Combine like terms: -2.888888889 + 2.888888889 = 0.000000000 0.000000000 + x = -2.810913476 + 2.888888889 x = -2.810913476 + 2.888888889 Combine like terms: -2.810913476 + 2.888888889 = 0.077975413 x = 0.077975413 Simplifying x = 0.077975413

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.699802365, 0.077975413}

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