x^2+26x-380=0

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Solution for x^2+26x-380=0 equation:


Simplifying
x2 + 26x + -380 = 0

Reorder the terms:
-380 + 26x + x2 = 0

Solving
-380 + 26x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '380' to each side of the equation.
-380 + 26x + 380 + x2 = 0 + 380

Reorder the terms:
-380 + 380 + 26x + x2 = 0 + 380

Combine like terms: -380 + 380 = 0
0 + 26x + x2 = 0 + 380
26x + x2 = 0 + 380

Combine like terms: 0 + 380 = 380
26x + x2 = 380

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 = 380 + 169

Reorder the terms:
169 + 26x + x2 = 380 + 169

Combine like terms: 380 + 169 = 549
169 + 26x + x2 = 549

Factor a perfect square on the left side:
(x + 13)(x + 13) = 549

Calculate the square root of the right side: 23.430749028

Break this problem into two subproblems by setting 
(x + 13) equal to 23.430749028 and -23.430749028.

Subproblem 1

x + 13 = 23.430749028 Simplifying x + 13 = 23.430749028 Reorder the terms: 13 + x = 23.430749028 Solving 13 + x = 23.430749028 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 = 23.430749028 + -13 Combine like terms: 13 + -13 = 0 0 + x = 23.430749028 + -13 x = 23.430749028 + -13 Combine like terms: 23.430749028 + -13 = 10.430749028 x = 10.430749028 Simplifying x = 10.430749028

Subproblem 2

x + 13 = -23.430749028 Simplifying x + 13 = -23.430749028 Reorder the terms: 13 + x = -23.430749028 Solving 13 + x = -23.430749028 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 = -23.430749028 + -13 Combine like terms: 13 + -13 = 0 0 + x = -23.430749028 + -13 x = -23.430749028 + -13 Combine like terms: -23.430749028 + -13 = -36.430749028 x = -36.430749028 Simplifying x = -36.430749028

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.430749028, -36.430749028}

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