x^2+26x+64=0

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Solution for x^2+26x+64=0 equation:


Simplifying
x2 + 26x + 64 = 0

Reorder the terms:
64 + 26x + x2 = 0

Solving
64 + 26x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-64' to each side of the equation.
64 + 26x + -64 + x2 = 0 + -64

Reorder the terms:
64 + -64 + 26x + x2 = 0 + -64

Combine like terms: 64 + -64 = 0
0 + 26x + x2 = 0 + -64
26x + x2 = 0 + -64

Combine like terms: 0 + -64 = -64
26x + x2 = -64

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 = -64 + 169

Reorder the terms:
169 + 26x + x2 = -64 + 169

Combine like terms: -64 + 169 = 105
169 + 26x + x2 = 105

Factor a perfect square on the left side:
(x + 13)(x + 13) = 105

Calculate the square root of the right side: 10.246950766

Break this problem into two subproblems by setting 
(x + 13) equal to 10.246950766 and -10.246950766.

Subproblem 1

x + 13 = 10.246950766 Simplifying x + 13 = 10.246950766 Reorder the terms: 13 + x = 10.246950766 Solving 13 + x = 10.246950766 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 = 10.246950766 + -13 Combine like terms: 13 + -13 = 0 0 + x = 10.246950766 + -13 x = 10.246950766 + -13 Combine like terms: 10.246950766 + -13 = -2.753049234 x = -2.753049234 Simplifying x = -2.753049234

Subproblem 2

x + 13 = -10.246950766 Simplifying x + 13 = -10.246950766 Reorder the terms: 13 + x = -10.246950766 Solving 13 + x = -10.246950766 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 = -10.246950766 + -13 Combine like terms: 13 + -13 = 0 0 + x = -10.246950766 + -13 x = -10.246950766 + -13 Combine like terms: -10.246950766 + -13 = -23.246950766 x = -23.246950766 Simplifying x = -23.246950766

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.753049234, -23.246950766}

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