x^2-24x-28=0

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Solution for x^2-24x-28=0 equation:


Simplifying
x2 + -24x + -28 = 0

Reorder the terms:
-28 + -24x + x2 = 0

Solving
-28 + -24x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '28' to each side of the equation.
-28 + -24x + 28 + x2 = 0 + 28

Reorder the terms:
-28 + 28 + -24x + x2 = 0 + 28

Combine like terms: -28 + 28 = 0
0 + -24x + x2 = 0 + 28
-24x + x2 = 0 + 28

Combine like terms: 0 + 28 = 28
-24x + x2 = 28

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 = 28 + 144

Reorder the terms:
144 + -24x + x2 = 28 + 144

Combine like terms: 28 + 144 = 172
144 + -24x + x2 = 172

Factor a perfect square on the left side:
(x + -12)(x + -12) = 172

Calculate the square root of the right side: 13.114877049

Break this problem into two subproblems by setting 
(x + -12) equal to 13.114877049 and -13.114877049.

Subproblem 1

x + -12 = 13.114877049 Simplifying x + -12 = 13.114877049 Reorder the terms: -12 + x = 13.114877049 Solving -12 + x = 13.114877049 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 = 13.114877049 + 12 Combine like terms: -12 + 12 = 0 0 + x = 13.114877049 + 12 x = 13.114877049 + 12 Combine like terms: 13.114877049 + 12 = 25.114877049 x = 25.114877049 Simplifying x = 25.114877049

Subproblem 2

x + -12 = -13.114877049 Simplifying x + -12 = -13.114877049 Reorder the terms: -12 + x = -13.114877049 Solving -12 + x = -13.114877049 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 = -13.114877049 + 12 Combine like terms: -12 + 12 = 0 0 + x = -13.114877049 + 12 x = -13.114877049 + 12 Combine like terms: -13.114877049 + 12 = -1.114877049 x = -1.114877049 Simplifying x = -1.114877049

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.114877049, -1.114877049}

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