x^2+36x=36100

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Solution for x^2+36x=36100 equation:


Simplifying
x2 + 36x = 36100

Reorder the terms:
36x + x2 = 36100

Solving
36x + x2 = 36100

Solving for variable 'x'.

Reorder the terms:
-36100 + 36x + x2 = 36100 + -36100

Combine like terms: 36100 + -36100 = 0
-36100 + 36x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '36100' to each side of the equation.
-36100 + 36x + 36100 + x2 = 0 + 36100

Reorder the terms:
-36100 + 36100 + 36x + x2 = 0 + 36100

Combine like terms: -36100 + 36100 = 0
0 + 36x + x2 = 0 + 36100
36x + x2 = 0 + 36100

Combine like terms: 0 + 36100 = 36100
36x + x2 = 36100

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 = 36100 + 324

Reorder the terms:
324 + 36x + x2 = 36100 + 324

Combine like terms: 36100 + 324 = 36424
324 + 36x + x2 = 36424

Factor a perfect square on the left side:
(x + 18)(x + 18) = 36424

Calculate the square root of the right side: 190.850727009

Break this problem into two subproblems by setting 
(x + 18) equal to 190.850727009 and -190.850727009.

Subproblem 1

x + 18 = 190.850727009 Simplifying x + 18 = 190.850727009 Reorder the terms: 18 + x = 190.850727009 Solving 18 + x = 190.850727009 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 = 190.850727009 + -18 Combine like terms: 18 + -18 = 0 0 + x = 190.850727009 + -18 x = 190.850727009 + -18 Combine like terms: 190.850727009 + -18 = 172.850727009 x = 172.850727009 Simplifying x = 172.850727009

Subproblem 2

x + 18 = -190.850727009 Simplifying x + 18 = -190.850727009 Reorder the terms: 18 + x = -190.850727009 Solving 18 + x = -190.850727009 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 = -190.850727009 + -18 Combine like terms: 18 + -18 = 0 0 + x = -190.850727009 + -18 x = -190.850727009 + -18 Combine like terms: -190.850727009 + -18 = -208.850727009 x = -208.850727009 Simplifying x = -208.850727009

Solution

The solution to the problem is based on the solutions from the subproblems. x = {172.850727009, -208.850727009}

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