x^2-13x+25=0

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


Simplifying
x2 + -13x + 25 = 0

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

Solving
25 + -13x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + -13x + -25 + x2 = 0 + -25

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

Combine like terms: 25 + -25 = 0
0 + -13x + x2 = 0 + -25
-13x + x2 = 0 + -25

Combine like terms: 0 + -25 = -25
-13x + x2 = -25

The x term is -13x.  Take half its coefficient (-6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
-13x + 42.25 + x2 = -25 + 42.25

Reorder the terms:
42.25 + -13x + x2 = -25 + 42.25

Combine like terms: -25 + 42.25 = 17.25
42.25 + -13x + x2 = 17.25

Factor a perfect square on the left side:
(x + -6.5)(x + -6.5) = 17.25

Calculate the square root of the right side: 4.153311931

Break this problem into two subproblems by setting 
(x + -6.5) equal to 4.153311931 and -4.153311931.

Subproblem 1

x + -6.5 = 4.153311931 Simplifying x + -6.5 = 4.153311931 Reorder the terms: -6.5 + x = 4.153311931 Solving -6.5 + x = 4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = 4.153311931 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = 4.153311931 + 6.5 x = 4.153311931 + 6.5 Combine like terms: 4.153311931 + 6.5 = 10.653311931 x = 10.653311931 Simplifying x = 10.653311931

Subproblem 2

x + -6.5 = -4.153311931 Simplifying x + -6.5 = -4.153311931 Reorder the terms: -6.5 + x = -4.153311931 Solving -6.5 + x = -4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = -4.153311931 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = -4.153311931 + 6.5 x = -4.153311931 + 6.5 Combine like terms: -4.153311931 + 6.5 = 2.346688069 x = 2.346688069 Simplifying x = 2.346688069

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.653311931, 2.346688069}

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