x^2-36x-210=0

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Solution for x^2-36x-210=0 equation:


Simplifying
x2 + -36x + -210 = 0

Reorder the terms:
-210 + -36x + x2 = 0

Solving
-210 + -36x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '210' to each side of the equation.
-210 + -36x + 210 + x2 = 0 + 210

Reorder the terms:
-210 + 210 + -36x + x2 = 0 + 210

Combine like terms: -210 + 210 = 0
0 + -36x + x2 = 0 + 210
-36x + x2 = 0 + 210

Combine like terms: 0 + 210 = 210
-36x + x2 = 210

The x term is -36x.  Take half its coefficient (-18).
Square it (324) and add it to both sides.

Add '324' to each side of the equation.
-36x + 324 + x2 = 210 + 324

Reorder the terms:
324 + -36x + x2 = 210 + 324

Combine like terms: 210 + 324 = 534
324 + -36x + x2 = 534

Factor a perfect square on the left side:
(x + -18)(x + -18) = 534

Calculate the square root of the right side: 23.108440017

Break this problem into two subproblems by setting 
(x + -18) equal to 23.108440017 and -23.108440017.

Subproblem 1

x + -18 = 23.108440017 Simplifying x + -18 = 23.108440017 Reorder the terms: -18 + x = 23.108440017 Solving -18 + x = 23.108440017 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = 23.108440017 + 18 Combine like terms: -18 + 18 = 0 0 + x = 23.108440017 + 18 x = 23.108440017 + 18 Combine like terms: 23.108440017 + 18 = 41.108440017 x = 41.108440017 Simplifying x = 41.108440017

Subproblem 2

x + -18 = -23.108440017 Simplifying x + -18 = -23.108440017 Reorder the terms: -18 + x = -23.108440017 Solving -18 + x = -23.108440017 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = -23.108440017 + 18 Combine like terms: -18 + 18 = 0 0 + x = -23.108440017 + 18 x = -23.108440017 + 18 Combine like terms: -23.108440017 + 18 = -5.108440017 x = -5.108440017 Simplifying x = -5.108440017

Solution

The solution to the problem is based on the solutions from the subproblems. x = {41.108440017, -5.108440017}

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