x^2+100x-10000=0

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Solution for x^2+100x-10000=0 equation:


Simplifying
x2 + 100x + -10000 = 0

Reorder the terms:
-10000 + 100x + x2 = 0

Solving
-10000 + 100x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '10000' to each side of the equation.
-10000 + 100x + 10000 + x2 = 0 + 10000

Reorder the terms:
-10000 + 10000 + 100x + x2 = 0 + 10000

Combine like terms: -10000 + 10000 = 0
0 + 100x + x2 = 0 + 10000
100x + x2 = 0 + 10000

Combine like terms: 0 + 10000 = 10000
100x + x2 = 10000

The x term is 100x.  Take half its coefficient (50).
Square it (2500) and add it to both sides.

Add '2500' to each side of the equation.
100x + 2500 + x2 = 10000 + 2500

Reorder the terms:
2500 + 100x + x2 = 10000 + 2500

Combine like terms: 10000 + 2500 = 12500
2500 + 100x + x2 = 12500

Factor a perfect square on the left side:
(x + 50)(x + 50) = 12500

Calculate the square root of the right side: 111.803398875

Break this problem into two subproblems by setting 
(x + 50) equal to 111.803398875 and -111.803398875.

Subproblem 1

x + 50 = 111.803398875 Simplifying x + 50 = 111.803398875 Reorder the terms: 50 + x = 111.803398875 Solving 50 + x = 111.803398875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-50' to each side of the equation. 50 + -50 + x = 111.803398875 + -50 Combine like terms: 50 + -50 = 0 0 + x = 111.803398875 + -50 x = 111.803398875 + -50 Combine like terms: 111.803398875 + -50 = 61.803398875 x = 61.803398875 Simplifying x = 61.803398875

Subproblem 2

x + 50 = -111.803398875 Simplifying x + 50 = -111.803398875 Reorder the terms: 50 + x = -111.803398875 Solving 50 + x = -111.803398875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-50' to each side of the equation. 50 + -50 + x = -111.803398875 + -50 Combine like terms: 50 + -50 = 0 0 + x = -111.803398875 + -50 x = -111.803398875 + -50 Combine like terms: -111.803398875 + -50 = -161.803398875 x = -161.803398875 Simplifying x = -161.803398875

Solution

The solution to the problem is based on the solutions from the subproblems. x = {61.803398875, -161.803398875}

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