x^2-32x+120=0

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Solution for x^2-32x+120=0 equation:


Simplifying
x2 + -32x + 120 = 0

Reorder the terms:
120 + -32x + x2 = 0

Solving
120 + -32x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-120' to each side of the equation.
120 + -32x + -120 + x2 = 0 + -120

Reorder the terms:
120 + -120 + -32x + x2 = 0 + -120

Combine like terms: 120 + -120 = 0
0 + -32x + x2 = 0 + -120
-32x + x2 = 0 + -120

Combine like terms: 0 + -120 = -120
-32x + x2 = -120

The x term is -32x.  Take half its coefficient (-16).
Square it (256) and add it to both sides.

Add '256' to each side of the equation.
-32x + 256 + x2 = -120 + 256

Reorder the terms:
256 + -32x + x2 = -120 + 256

Combine like terms: -120 + 256 = 136
256 + -32x + x2 = 136

Factor a perfect square on the left side:
(x + -16)(x + -16) = 136

Calculate the square root of the right side: 11.66190379

Break this problem into two subproblems by setting 
(x + -16) equal to 11.66190379 and -11.66190379.

Subproblem 1

x + -16 = 11.66190379 Simplifying x + -16 = 11.66190379 Reorder the terms: -16 + x = 11.66190379 Solving -16 + x = 11.66190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = 11.66190379 + 16 Combine like terms: -16 + 16 = 0 0 + x = 11.66190379 + 16 x = 11.66190379 + 16 Combine like terms: 11.66190379 + 16 = 27.66190379 x = 27.66190379 Simplifying x = 27.66190379

Subproblem 2

x + -16 = -11.66190379 Simplifying x + -16 = -11.66190379 Reorder the terms: -16 + x = -11.66190379 Solving -16 + x = -11.66190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = -11.66190379 + 16 Combine like terms: -16 + 16 = 0 0 + x = -11.66190379 + 16 x = -11.66190379 + 16 Combine like terms: -11.66190379 + 16 = 4.33809621 x = 4.33809621 Simplifying x = 4.33809621

Solution

The solution to the problem is based on the solutions from the subproblems. x = {27.66190379, 4.33809621}

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