(25x^2)-(112.5x)+125=x^2

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Solution for (25x^2)-(112.5x)+125=x^2 equation:


Simplifying
(25x2) + -1(112.5x) + 125 = x2

Remove parenthesis around (112.5x)
(25x2) + -1 * 112.5x + 125 = x2

Multiply -1 * 112.5
(25x2) + -112.5x + 125 = x2

Reorder the terms:
125 + -112.5x + (25x2) = x2

Solving
125 + -112.5x + (25x2) = x2

Solving for variable 'x'.

Combine like terms: (25x2) + -1x2 = 24x2
125 + -112.5x + 24x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
125 + -112.5x + 24x2 = 0

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

Divide each side by '24'.
5.208333333 + -4.6875x + x2 = 0

Move the constant term to the right:

Add '-5.208333333' to each side of the equation.
5.208333333 + -4.6875x + -5.208333333 + x2 = 0 + -5.208333333

Reorder the terms:
5.208333333 + -5.208333333 + -4.6875x + x2 = 0 + -5.208333333

Combine like terms: 5.208333333 + -5.208333333 = 0.000000000
0.000000000 + -4.6875x + x2 = 0 + -5.208333333
-4.6875x + x2 = 0 + -5.208333333

Combine like terms: 0 + -5.208333333 = -5.208333333
-4.6875x + x2 = -5.208333333

The x term is -4.6875x.  Take half its coefficient (-2.34375).
Square it (5.493164063) and add it to both sides.

Add '5.493164063' to each side of the equation.
-4.6875x + 5.493164063 + x2 = -5.208333333 + 5.493164063

Reorder the terms:
5.493164063 + -4.6875x + x2 = -5.208333333 + 5.493164063

Combine like terms: -5.208333333 + 5.493164063 = 0.28483073
5.493164063 + -4.6875x + x2 = 0.28483073

Factor a perfect square on the left side:
(x + -2.34375)(x + -2.34375) = 0.28483073

Calculate the square root of the right side: 0.533695353

Break this problem into two subproblems by setting 
(x + -2.34375) equal to 0.533695353 and -0.533695353.

Subproblem 1

x + -2.34375 = 0.533695353 Simplifying x + -2.34375 = 0.533695353 Reorder the terms: -2.34375 + x = 0.533695353 Solving -2.34375 + x = 0.533695353 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + x = 0.533695353 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + x = 0.533695353 + 2.34375 x = 0.533695353 + 2.34375 Combine like terms: 0.533695353 + 2.34375 = 2.877445353 x = 2.877445353 Simplifying x = 2.877445353

Subproblem 2

x + -2.34375 = -0.533695353 Simplifying x + -2.34375 = -0.533695353 Reorder the terms: -2.34375 + x = -0.533695353 Solving -2.34375 + x = -0.533695353 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + x = -0.533695353 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + x = -0.533695353 + 2.34375 x = -0.533695353 + 2.34375 Combine like terms: -0.533695353 + 2.34375 = 1.810054647 x = 1.810054647 Simplifying x = 1.810054647

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.877445353, 1.810054647}

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