10x^2-25x+13=0

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Solution for 10x^2-25x+13=0 equation:


Simplifying
10x2 + -25x + 13 = 0

Reorder the terms:
13 + -25x + 10x2 = 0

Solving
13 + -25x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
1.3 + -2.5x + x2 = 0

Move the constant term to the right:

Add '-1.3' to each side of the equation.
1.3 + -2.5x + -1.3 + x2 = 0 + -1.3

Reorder the terms:
1.3 + -1.3 + -2.5x + x2 = 0 + -1.3

Combine like terms: 1.3 + -1.3 = 0.0
0.0 + -2.5x + x2 = 0 + -1.3
-2.5x + x2 = 0 + -1.3

Combine like terms: 0 + -1.3 = -1.3
-2.5x + x2 = -1.3

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = -1.3 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = -1.3 + 1.5625

Combine like terms: -1.3 + 1.5625 = 0.2625
1.5625 + -2.5x + x2 = 0.2625

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = 0.2625

Calculate the square root of the right side: 0.512347538

Break this problem into two subproblems by setting 
(x + -1.25) equal to 0.512347538 and -0.512347538.

Subproblem 1

x + -1.25 = 0.512347538 Simplifying x + -1.25 = 0.512347538 Reorder the terms: -1.25 + x = 0.512347538 Solving -1.25 + x = 0.512347538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 0.512347538 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 0.512347538 + 1.25 x = 0.512347538 + 1.25 Combine like terms: 0.512347538 + 1.25 = 1.762347538 x = 1.762347538 Simplifying x = 1.762347538

Subproblem 2

x + -1.25 = -0.512347538 Simplifying x + -1.25 = -0.512347538 Reorder the terms: -1.25 + x = -0.512347538 Solving -1.25 + x = -0.512347538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -0.512347538 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -0.512347538 + 1.25 x = -0.512347538 + 1.25 Combine like terms: -0.512347538 + 1.25 = 0.737652462 x = 0.737652462 Simplifying x = 0.737652462

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.762347538, 0.737652462}

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