x^2+56x-24=0

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Solution for x^2+56x-24=0 equation:


Simplifying
x2 + 56x + -24 = 0

Reorder the terms:
-24 + 56x + x2 = 0

Solving
-24 + 56x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + 56x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + 56x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + 56x + x2 = 0 + 24
56x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
56x + x2 = 24

The x term is 56x.  Take half its coefficient (28).
Square it (784) and add it to both sides.

Add '784' to each side of the equation.
56x + 784 + x2 = 24 + 784

Reorder the terms:
784 + 56x + x2 = 24 + 784

Combine like terms: 24 + 784 = 808
784 + 56x + x2 = 808

Factor a perfect square on the left side:
(x + 28)(x + 28) = 808

Calculate the square root of the right side: 28.425340807

Break this problem into two subproblems by setting 
(x + 28) equal to 28.425340807 and -28.425340807.

Subproblem 1

x + 28 = 28.425340807 Simplifying x + 28 = 28.425340807 Reorder the terms: 28 + x = 28.425340807 Solving 28 + x = 28.425340807 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + x = 28.425340807 + -28 Combine like terms: 28 + -28 = 0 0 + x = 28.425340807 + -28 x = 28.425340807 + -28 Combine like terms: 28.425340807 + -28 = 0.425340807 x = 0.425340807 Simplifying x = 0.425340807

Subproblem 2

x + 28 = -28.425340807 Simplifying x + 28 = -28.425340807 Reorder the terms: 28 + x = -28.425340807 Solving 28 + x = -28.425340807 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + x = -28.425340807 + -28 Combine like terms: 28 + -28 = 0 0 + x = -28.425340807 + -28 x = -28.425340807 + -28 Combine like terms: -28.425340807 + -28 = -56.425340807 x = -56.425340807 Simplifying x = -56.425340807

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.425340807, -56.425340807}

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