x^2-111x-56=0

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Solution for x^2-111x-56=0 equation:


Simplifying
x2 + -111x + -56 = 0

Reorder the terms:
-56 + -111x + x2 = 0

Solving
-56 + -111x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '56' to each side of the equation.
-56 + -111x + 56 + x2 = 0 + 56

Reorder the terms:
-56 + 56 + -111x + x2 = 0 + 56

Combine like terms: -56 + 56 = 0
0 + -111x + x2 = 0 + 56
-111x + x2 = 0 + 56

Combine like terms: 0 + 56 = 56
-111x + x2 = 56

The x term is -111x.  Take half its coefficient (-55.5).
Square it (3080.25) and add it to both sides.

Add '3080.25' to each side of the equation.
-111x + 3080.25 + x2 = 56 + 3080.25

Reorder the terms:
3080.25 + -111x + x2 = 56 + 3080.25

Combine like terms: 56 + 3080.25 = 3136.25
3080.25 + -111x + x2 = 3136.25

Factor a perfect square on the left side:
(x + -55.5)(x + -55.5) = 3136.25

Calculate the square root of the right side: 56.002232098

Break this problem into two subproblems by setting 
(x + -55.5) equal to 56.002232098 and -56.002232098.

Subproblem 1

x + -55.5 = 56.002232098 Simplifying x + -55.5 = 56.002232098 Reorder the terms: -55.5 + x = 56.002232098 Solving -55.5 + x = 56.002232098 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '55.5' to each side of the equation. -55.5 + 55.5 + x = 56.002232098 + 55.5 Combine like terms: -55.5 + 55.5 = 0.0 0.0 + x = 56.002232098 + 55.5 x = 56.002232098 + 55.5 Combine like terms: 56.002232098 + 55.5 = 111.502232098 x = 111.502232098 Simplifying x = 111.502232098

Subproblem 2

x + -55.5 = -56.002232098 Simplifying x + -55.5 = -56.002232098 Reorder the terms: -55.5 + x = -56.002232098 Solving -55.5 + x = -56.002232098 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '55.5' to each side of the equation. -55.5 + 55.5 + x = -56.002232098 + 55.5 Combine like terms: -55.5 + 55.5 = 0.0 0.0 + x = -56.002232098 + 55.5 x = -56.002232098 + 55.5 Combine like terms: -56.002232098 + 55.5 = -0.502232098 x = -0.502232098 Simplifying x = -0.502232098

Solution

The solution to the problem is based on the solutions from the subproblems. x = {111.502232098, -0.502232098}

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