x^2+26x+57=0

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Solution for x^2+26x+57=0 equation:


Simplifying
x2 + 26x + 57 = 0

Reorder the terms:
57 + 26x + x2 = 0

Solving
57 + 26x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-57' to each side of the equation.
57 + 26x + -57 + x2 = 0 + -57

Reorder the terms:
57 + -57 + 26x + x2 = 0 + -57

Combine like terms: 57 + -57 = 0
0 + 26x + x2 = 0 + -57
26x + x2 = 0 + -57

Combine like terms: 0 + -57 = -57
26x + x2 = -57

The x term is 26x.  Take half its coefficient (13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
26x + 169 + x2 = -57 + 169

Reorder the terms:
169 + 26x + x2 = -57 + 169

Combine like terms: -57 + 169 = 112
169 + 26x + x2 = 112

Factor a perfect square on the left side:
(x + 13)(x + 13) = 112

Calculate the square root of the right side: 10.583005244

Break this problem into two subproblems by setting 
(x + 13) equal to 10.583005244 and -10.583005244.

Subproblem 1

x + 13 = 10.583005244 Simplifying x + 13 = 10.583005244 Reorder the terms: 13 + x = 10.583005244 Solving 13 + x = 10.583005244 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + x = 10.583005244 + -13 Combine like terms: 13 + -13 = 0 0 + x = 10.583005244 + -13 x = 10.583005244 + -13 Combine like terms: 10.583005244 + -13 = -2.416994756 x = -2.416994756 Simplifying x = -2.416994756

Subproblem 2

x + 13 = -10.583005244 Simplifying x + 13 = -10.583005244 Reorder the terms: 13 + x = -10.583005244 Solving 13 + x = -10.583005244 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + x = -10.583005244 + -13 Combine like terms: 13 + -13 = 0 0 + x = -10.583005244 + -13 x = -10.583005244 + -13 Combine like terms: -10.583005244 + -13 = -23.583005244 x = -23.583005244 Simplifying x = -23.583005244

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.416994756, -23.583005244}

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