9x^2-35x+25=0

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Solution for 9x^2-35x+25=0 equation:


Simplifying
9x2 + -35x + 25 = 0

Reorder the terms:
25 + -35x + 9x2 = 0

Solving
25 + -35x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
2.777777778 + -3.888888889x + x2 = 0

Move the constant term to the right:

Add '-2.777777778' to each side of the equation.
2.777777778 + -3.888888889x + -2.777777778 + x2 = 0 + -2.777777778

Reorder the terms:
2.777777778 + -2.777777778 + -3.888888889x + x2 = 0 + -2.777777778

Combine like terms: 2.777777778 + -2.777777778 = 0.000000000
0.000000000 + -3.888888889x + x2 = 0 + -2.777777778
-3.888888889x + x2 = 0 + -2.777777778

Combine like terms: 0 + -2.777777778 = -2.777777778
-3.888888889x + x2 = -2.777777778

The x term is -3.888888889x.  Take half its coefficient (-1.944444445).
Square it (3.780864200) and add it to both sides.

Add '3.780864200' to each side of the equation.
-3.888888889x + 3.780864200 + x2 = -2.777777778 + 3.780864200

Reorder the terms:
3.780864200 + -3.888888889x + x2 = -2.777777778 + 3.780864200

Combine like terms: -2.777777778 + 3.780864200 = 1.003086422
3.780864200 + -3.888888889x + x2 = 1.003086422

Factor a perfect square on the left side:
(x + -1.944444445)(x + -1.944444445) = 1.003086422

Calculate the square root of the right side: 1.001542022

Break this problem into two subproblems by setting 
(x + -1.944444445) equal to 1.001542022 and -1.001542022.

Subproblem 1

x + -1.944444445 = 1.001542022 Simplifying x + -1.944444445 = 1.001542022 Reorder the terms: -1.944444445 + x = 1.001542022 Solving -1.944444445 + x = 1.001542022 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.944444445' to each side of the equation. -1.944444445 + 1.944444445 + x = 1.001542022 + 1.944444445 Combine like terms: -1.944444445 + 1.944444445 = 0.000000000 0.000000000 + x = 1.001542022 + 1.944444445 x = 1.001542022 + 1.944444445 Combine like terms: 1.001542022 + 1.944444445 = 2.945986467 x = 2.945986467 Simplifying x = 2.945986467

Subproblem 2

x + -1.944444445 = -1.001542022 Simplifying x + -1.944444445 = -1.001542022 Reorder the terms: -1.944444445 + x = -1.001542022 Solving -1.944444445 + x = -1.001542022 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.944444445' to each side of the equation. -1.944444445 + 1.944444445 + x = -1.001542022 + 1.944444445 Combine like terms: -1.944444445 + 1.944444445 = 0.000000000 0.000000000 + x = -1.001542022 + 1.944444445 x = -1.001542022 + 1.944444445 Combine like terms: -1.001542022 + 1.944444445 = 0.942902423 x = 0.942902423 Simplifying x = 0.942902423

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.945986467, 0.942902423}

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