x^2-24x-80=0

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Solution for x^2-24x-80=0 equation:


Simplifying
x2 + -24x + -80 = 0

Reorder the terms:
-80 + -24x + x2 = 0

Solving
-80 + -24x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '80' to each side of the equation.
-80 + -24x + 80 + x2 = 0 + 80

Reorder the terms:
-80 + 80 + -24x + x2 = 0 + 80

Combine like terms: -80 + 80 = 0
0 + -24x + x2 = 0 + 80
-24x + x2 = 0 + 80

Combine like terms: 0 + 80 = 80
-24x + x2 = 80

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 = 80 + 144

Reorder the terms:
144 + -24x + x2 = 80 + 144

Combine like terms: 80 + 144 = 224
144 + -24x + x2 = 224

Factor a perfect square on the left side:
(x + -12)(x + -12) = 224

Calculate the square root of the right side: 14.966629547

Break this problem into two subproblems by setting 
(x + -12) equal to 14.966629547 and -14.966629547.

Subproblem 1

x + -12 = 14.966629547 Simplifying x + -12 = 14.966629547 Reorder the terms: -12 + x = 14.966629547 Solving -12 + x = 14.966629547 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 = 14.966629547 + 12 Combine like terms: -12 + 12 = 0 0 + x = 14.966629547 + 12 x = 14.966629547 + 12 Combine like terms: 14.966629547 + 12 = 26.966629547 x = 26.966629547 Simplifying x = 26.966629547

Subproblem 2

x + -12 = -14.966629547 Simplifying x + -12 = -14.966629547 Reorder the terms: -12 + x = -14.966629547 Solving -12 + x = -14.966629547 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 = -14.966629547 + 12 Combine like terms: -12 + 12 = 0 0 + x = -14.966629547 + 12 x = -14.966629547 + 12 Combine like terms: -14.966629547 + 12 = -2.966629547 x = -2.966629547 Simplifying x = -2.966629547

Solution

The solution to the problem is based on the solutions from the subproblems. x = {26.966629547, -2.966629547}

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