x^2-24x+15=0

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Solution for x^2-24x+15=0 equation:


Simplifying
x2 + -24x + 15 = 0

Reorder the terms:
15 + -24x + x2 = 0

Solving
15 + -24x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + -24x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + -24x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -24x + x2 = 0 + -15
-24x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
-24x + x2 = -15

The x term is -24x.  Take half its coefficient (-12).
Square it (144) and add it to both sides.

Add '144' to each side of the equation.
-24x + 144 + x2 = -15 + 144

Reorder the terms:
144 + -24x + x2 = -15 + 144

Combine like terms: -15 + 144 = 129
144 + -24x + x2 = 129

Factor a perfect square on the left side:
(x + -12)(x + -12) = 129

Calculate the square root of the right side: 11.357816692

Break this problem into two subproblems by setting 
(x + -12) equal to 11.357816692 and -11.357816692.

Subproblem 1

x + -12 = 11.357816692 Simplifying x + -12 = 11.357816692 Reorder the terms: -12 + x = 11.357816692 Solving -12 + x = 11.357816692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = 11.357816692 + 12 Combine like terms: -12 + 12 = 0 0 + x = 11.357816692 + 12 x = 11.357816692 + 12 Combine like terms: 11.357816692 + 12 = 23.357816692 x = 23.357816692 Simplifying x = 23.357816692

Subproblem 2

x + -12 = -11.357816692 Simplifying x + -12 = -11.357816692 Reorder the terms: -12 + x = -11.357816692 Solving -12 + x = -11.357816692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = -11.357816692 + 12 Combine like terms: -12 + 12 = 0 0 + x = -11.357816692 + 12 x = -11.357816692 + 12 Combine like terms: -11.357816692 + 12 = 0.642183308 x = 0.642183308 Simplifying x = 0.642183308

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.357816692, 0.642183308}

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