x^2-12x=24

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Solution for x^2-12x=24 equation:


Simplifying
x2 + -12x = 24

Reorder the terms:
-12x + x2 = 24

Solving
-12x + x2 = 24

Solving for variable 'x'.

Reorder the terms:
-24 + -12x + x2 = 24 + -24

Combine like terms: 24 + -24 = 0
-24 + -12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + -12x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + -12x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + -12x + x2 = 0 + 24
-12x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
-12x + x2 = 24

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = 24 + 36

Reorder the terms:
36 + -12x + x2 = 24 + 36

Combine like terms: 24 + 36 = 60
36 + -12x + x2 = 60

Factor a perfect square on the left side:
(x + -6)(x + -6) = 60

Calculate the square root of the right side: 7.745966692

Break this problem into two subproblems by setting 
(x + -6) equal to 7.745966692 and -7.745966692.

Subproblem 1

x + -6 = 7.745966692 Simplifying x + -6 = 7.745966692 Reorder the terms: -6 + x = 7.745966692 Solving -6 + x = 7.745966692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 7.745966692 + 6 Combine like terms: -6 + 6 = 0 0 + x = 7.745966692 + 6 x = 7.745966692 + 6 Combine like terms: 7.745966692 + 6 = 13.745966692 x = 13.745966692 Simplifying x = 13.745966692

Subproblem 2

x + -6 = -7.745966692 Simplifying x + -6 = -7.745966692 Reorder the terms: -6 + x = -7.745966692 Solving -6 + x = -7.745966692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -7.745966692 + 6 Combine like terms: -6 + 6 = 0 0 + x = -7.745966692 + 6 x = -7.745966692 + 6 Combine like terms: -7.745966692 + 6 = -1.745966692 x = -1.745966692 Simplifying x = -1.745966692

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.745966692, -1.745966692}

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