0=(x^2)-56x+104

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Solution for 0=(x^2)-56x+104 equation:


Simplifying
0 = (x2) + -56x + 104
0 = x2 + -56x + 104

Reorder the terms:
0 = 104 + -56x + x2

Solving
0 = 104 + -56x + x2

Solving for variable 'x'.

Combine like terms: 0 + -104 = -104
-104 + 56x + -1x2 = 104 + -56x + x2 + -104 + 56x + -1x2

Reorder the terms:
-104 + 56x + -1x2 = 104 + -104 + -56x + 56x + x2 + -1x2

Combine like terms: 104 + -104 = 0
-104 + 56x + -1x2 = 0 + -56x + 56x + x2 + -1x2
-104 + 56x + -1x2 = -56x + 56x + x2 + -1x2

Combine like terms: -56x + 56x = 0
-104 + 56x + -1x2 = 0 + x2 + -1x2
-104 + 56x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-104 + 56x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
104 + -56x + x2 = 0

Move the constant term to the right:

Add '-104' to each side of the equation.
104 + -56x + -104 + x2 = 0 + -104

Reorder the terms:
104 + -104 + -56x + x2 = 0 + -104

Combine like terms: 104 + -104 = 0
0 + -56x + x2 = 0 + -104
-56x + x2 = 0 + -104

Combine like terms: 0 + -104 = -104
-56x + x2 = -104

The x term is -56x.  Take half its coefficient (-28).
Square it (784) and add it to both sides.

Add '784' to each side of the equation.
-56x + 784 + x2 = -104 + 784

Reorder the terms:
784 + -56x + x2 = -104 + 784

Combine like terms: -104 + 784 = 680
784 + -56x + x2 = 680

Factor a perfect square on the left side:
(x + -28)(x + -28) = 680

Calculate the square root of the right side: 26.076809621

Break this problem into two subproblems by setting 
(x + -28) equal to 26.076809621 and -26.076809621.

Subproblem 1

x + -28 = 26.076809621 Simplifying x + -28 = 26.076809621 Reorder the terms: -28 + x = 26.076809621 Solving -28 + x = 26.076809621 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + x = 26.076809621 + 28 Combine like terms: -28 + 28 = 0 0 + x = 26.076809621 + 28 x = 26.076809621 + 28 Combine like terms: 26.076809621 + 28 = 54.076809621 x = 54.076809621 Simplifying x = 54.076809621

Subproblem 2

x + -28 = -26.076809621 Simplifying x + -28 = -26.076809621 Reorder the terms: -28 + x = -26.076809621 Solving -28 + x = -26.076809621 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + x = -26.076809621 + 28 Combine like terms: -28 + 28 = 0 0 + x = -26.076809621 + 28 x = -26.076809621 + 28 Combine like terms: -26.076809621 + 28 = 1.923190379 x = 1.923190379 Simplifying x = 1.923190379

Solution

The solution to the problem is based on the solutions from the subproblems. x = {54.076809621, 1.923190379}

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