x^2+24x-392=0

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Solution for x^2+24x-392=0 equation:


Simplifying
x2 + 24x + -392 = 0

Reorder the terms:
-392 + 24x + x2 = 0

Solving
-392 + 24x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '392' to each side of the equation.
-392 + 24x + 392 + x2 = 0 + 392

Reorder the terms:
-392 + 392 + 24x + x2 = 0 + 392

Combine like terms: -392 + 392 = 0
0 + 24x + x2 = 0 + 392
24x + x2 = 0 + 392

Combine like terms: 0 + 392 = 392
24x + x2 = 392

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 = 392 + 144

Reorder the terms:
144 + 24x + x2 = 392 + 144

Combine like terms: 392 + 144 = 536
144 + 24x + x2 = 536

Factor a perfect square on the left side:
(x + 12)(x + 12) = 536

Calculate the square root of the right side: 23.151673806

Break this problem into two subproblems by setting 
(x + 12) equal to 23.151673806 and -23.151673806.

Subproblem 1

x + 12 = 23.151673806 Simplifying x + 12 = 23.151673806 Reorder the terms: 12 + x = 23.151673806 Solving 12 + x = 23.151673806 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 = 23.151673806 + -12 Combine like terms: 12 + -12 = 0 0 + x = 23.151673806 + -12 x = 23.151673806 + -12 Combine like terms: 23.151673806 + -12 = 11.151673806 x = 11.151673806 Simplifying x = 11.151673806

Subproblem 2

x + 12 = -23.151673806 Simplifying x + 12 = -23.151673806 Reorder the terms: 12 + x = -23.151673806 Solving 12 + x = -23.151673806 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 = -23.151673806 + -12 Combine like terms: 12 + -12 = 0 0 + x = -23.151673806 + -12 x = -23.151673806 + -12 Combine like terms: -23.151673806 + -12 = -35.151673806 x = -35.151673806 Simplifying x = -35.151673806

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.151673806, -35.151673806}

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