x^2+38x-625=0

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Solution for x^2+38x-625=0 equation:


Simplifying
x2 + 38x + -625 = 0

Reorder the terms:
-625 + 38x + x2 = 0

Solving
-625 + 38x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '625' to each side of the equation.
-625 + 38x + 625 + x2 = 0 + 625

Reorder the terms:
-625 + 625 + 38x + x2 = 0 + 625

Combine like terms: -625 + 625 = 0
0 + 38x + x2 = 0 + 625
38x + x2 = 0 + 625

Combine like terms: 0 + 625 = 625
38x + x2 = 625

The x term is 38x.  Take half its coefficient (19).
Square it (361) and add it to both sides.

Add '361' to each side of the equation.
38x + 361 + x2 = 625 + 361

Reorder the terms:
361 + 38x + x2 = 625 + 361

Combine like terms: 625 + 361 = 986
361 + 38x + x2 = 986

Factor a perfect square on the left side:
(x + 19)(x + 19) = 986

Calculate the square root of the right side: 31.400636936

Break this problem into two subproblems by setting 
(x + 19) equal to 31.400636936 and -31.400636936.

Subproblem 1

x + 19 = 31.400636936 Simplifying x + 19 = 31.400636936 Reorder the terms: 19 + x = 31.400636936 Solving 19 + x = 31.400636936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + x = 31.400636936 + -19 Combine like terms: 19 + -19 = 0 0 + x = 31.400636936 + -19 x = 31.400636936 + -19 Combine like terms: 31.400636936 + -19 = 12.400636936 x = 12.400636936 Simplifying x = 12.400636936

Subproblem 2

x + 19 = -31.400636936 Simplifying x + 19 = -31.400636936 Reorder the terms: 19 + x = -31.400636936 Solving 19 + x = -31.400636936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + x = -31.400636936 + -19 Combine like terms: 19 + -19 = 0 0 + x = -31.400636936 + -19 x = -31.400636936 + -19 Combine like terms: -31.400636936 + -19 = -50.400636936 x = -50.400636936 Simplifying x = -50.400636936

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.400636936, -50.400636936}

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