x^2+36x-100=0

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Solution for x^2+36x-100=0 equation:


Simplifying
x2 + 36x + -100 = 0

Reorder the terms:
-100 + 36x + x2 = 0

Solving
-100 + 36x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '100' to each side of the equation.
-100 + 36x + 100 + x2 = 0 + 100

Reorder the terms:
-100 + 100 + 36x + x2 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + 36x + x2 = 0 + 100
36x + x2 = 0 + 100

Combine like terms: 0 + 100 = 100
36x + x2 = 100

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 = 100 + 324

Reorder the terms:
324 + 36x + x2 = 100 + 324

Combine like terms: 100 + 324 = 424
324 + 36x + x2 = 424

Factor a perfect square on the left side:
(x + 18)(x + 18) = 424

Calculate the square root of the right side: 20.591260282

Break this problem into two subproblems by setting 
(x + 18) equal to 20.591260282 and -20.591260282.

Subproblem 1

x + 18 = 20.591260282 Simplifying x + 18 = 20.591260282 Reorder the terms: 18 + x = 20.591260282 Solving 18 + x = 20.591260282 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 = 20.591260282 + -18 Combine like terms: 18 + -18 = 0 0 + x = 20.591260282 + -18 x = 20.591260282 + -18 Combine like terms: 20.591260282 + -18 = 2.591260282 x = 2.591260282 Simplifying x = 2.591260282

Subproblem 2

x + 18 = -20.591260282 Simplifying x + 18 = -20.591260282 Reorder the terms: 18 + x = -20.591260282 Solving 18 + x = -20.591260282 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 = -20.591260282 + -18 Combine like terms: 18 + -18 = 0 0 + x = -20.591260282 + -18 x = -20.591260282 + -18 Combine like terms: -20.591260282 + -18 = -38.591260282 x = -38.591260282 Simplifying x = -38.591260282

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.591260282, -38.591260282}

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