x^2-12.5x+39.0625=0

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Solution for x^2-12.5x+39.0625=0 equation:


Simplifying
x2 + -12.5x + 39.0625 = 0

Reorder the terms:
39.0625 + -12.5x + x2 = 0

Solving
39.0625 + -12.5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-39.0625' to each side of the equation.
39.0625 + -12.5x + -39.0625 + x2 = 0 + -39.0625

Reorder the terms:
39.0625 + -39.0625 + -12.5x + x2 = 0 + -39.0625

Combine like terms: 39.0625 + -39.0625 = 0.0000
0.0000 + -12.5x + x2 = 0 + -39.0625
-12.5x + x2 = 0 + -39.0625

Combine like terms: 0 + -39.0625 = -39.0625
-12.5x + x2 = -39.0625

The x term is -12.5x.  Take half its coefficient (-6.25).
Square it (39.0625) and add it to both sides.

Add '39.0625' to each side of the equation.
-12.5x + 39.0625 + x2 = -39.0625 + 39.0625

Reorder the terms:
39.0625 + -12.5x + x2 = -39.0625 + 39.0625

Combine like terms: -39.0625 + 39.0625 = 0.0000
39.0625 + -12.5x + x2 = 0.0000

Factor a perfect square on the left side:
(x + -6.25)(x + -6.25) = 0.0000

Calculate the square root of the right side: 0.0000

Break this problem into two subproblems by setting 
(x + -6.25) equal to 0.0000 and 0.0000.

Subproblem 1

x + -6.25 = 0.0000 Simplifying x + -6.25 = 0.0000 Reorder the terms: -6.25 + x = 0.0000 Solving -6.25 + x = 0.0000 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.25' to each side of the equation. -6.25 + 6.25 + x = 0.0000 + 6.25 Combine like terms: -6.25 + 6.25 = 0.00 0.00 + x = 0.0000 + 6.25 x = 0.0000 + 6.25 Combine like terms: 0.0000 + 6.25 = 6.25 x = 6.25 Simplifying x = 6.25

Subproblem 2

x + -6.25 = 0.0000 Simplifying x + -6.25 = 0.0000 Reorder the terms: -6.25 + x = 0.0000 Solving -6.25 + x = 0.0000 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.25' to each side of the equation. -6.25 + 6.25 + x = 0.0000 + 6.25 Combine like terms: -6.25 + 6.25 = 0.00 0.00 + x = 0.0000 + 6.25 x = 0.0000 + 6.25 Combine like terms: 0.0000 + 6.25 = 6.25 x = 6.25 Simplifying x = 6.25

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.25, 6.25}

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