x^2+24x+55=0

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Solution for x^2+24x+55=0 equation:


Simplifying
x2 + 24x + 55 = 0

Reorder the terms:
55 + 24x + x2 = 0

Solving
55 + 24x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-55' to each side of the equation.
55 + 24x + -55 + x2 = 0 + -55

Reorder the terms:
55 + -55 + 24x + x2 = 0 + -55

Combine like terms: 55 + -55 = 0
0 + 24x + x2 = 0 + -55
24x + x2 = 0 + -55

Combine like terms: 0 + -55 = -55
24x + x2 = -55

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 = -55 + 144

Reorder the terms:
144 + 24x + x2 = -55 + 144

Combine like terms: -55 + 144 = 89
144 + 24x + x2 = 89

Factor a perfect square on the left side:
(x + 12)(x + 12) = 89

Calculate the square root of the right side: 9.433981132

Break this problem into two subproblems by setting 
(x + 12) equal to 9.433981132 and -9.433981132.

Subproblem 1

x + 12 = 9.433981132 Simplifying x + 12 = 9.433981132 Reorder the terms: 12 + x = 9.433981132 Solving 12 + x = 9.433981132 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 = 9.433981132 + -12 Combine like terms: 12 + -12 = 0 0 + x = 9.433981132 + -12 x = 9.433981132 + -12 Combine like terms: 9.433981132 + -12 = -2.566018868 x = -2.566018868 Simplifying x = -2.566018868

Subproblem 2

x + 12 = -9.433981132 Simplifying x + 12 = -9.433981132 Reorder the terms: 12 + x = -9.433981132 Solving 12 + x = -9.433981132 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 = -9.433981132 + -12 Combine like terms: 12 + -12 = 0 0 + x = -9.433981132 + -12 x = -9.433981132 + -12 Combine like terms: -9.433981132 + -12 = -21.433981132 x = -21.433981132 Simplifying x = -21.433981132

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.566018868, -21.433981132}

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