x^2-24x+54=0

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Solution for x^2-24x+54=0 equation:


Simplifying
x2 + -24x + 54 = 0

Reorder the terms:
54 + -24x + x2 = 0

Solving
54 + -24x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-54' to each side of the equation.
54 + -24x + -54 + x2 = 0 + -54

Reorder the terms:
54 + -54 + -24x + x2 = 0 + -54

Combine like terms: 54 + -54 = 0
0 + -24x + x2 = 0 + -54
-24x + x2 = 0 + -54

Combine like terms: 0 + -54 = -54
-24x + x2 = -54

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 = -54 + 144

Reorder the terms:
144 + -24x + x2 = -54 + 144

Combine like terms: -54 + 144 = 90
144 + -24x + x2 = 90

Factor a perfect square on the left side:
(x + -12)(x + -12) = 90

Calculate the square root of the right side: 9.486832981

Break this problem into two subproblems by setting 
(x + -12) equal to 9.486832981 and -9.486832981.

Subproblem 1

x + -12 = 9.486832981 Simplifying x + -12 = 9.486832981 Reorder the terms: -12 + x = 9.486832981 Solving -12 + x = 9.486832981 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 = 9.486832981 + 12 Combine like terms: -12 + 12 = 0 0 + x = 9.486832981 + 12 x = 9.486832981 + 12 Combine like terms: 9.486832981 + 12 = 21.486832981 x = 21.486832981 Simplifying x = 21.486832981

Subproblem 2

x + -12 = -9.486832981 Simplifying x + -12 = -9.486832981 Reorder the terms: -12 + x = -9.486832981 Solving -12 + x = -9.486832981 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 = -9.486832981 + 12 Combine like terms: -12 + 12 = 0 0 + x = -9.486832981 + 12 x = -9.486832981 + 12 Combine like terms: -9.486832981 + 12 = 2.513167019 x = 2.513167019 Simplifying x = 2.513167019

Solution

The solution to the problem is based on the solutions from the subproblems. x = {21.486832981, 2.513167019}

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