x^2+200x-25=0

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Solution for x^2+200x-25=0 equation:


Simplifying
x2 + 200x + -25 = 0

Reorder the terms:
-25 + 200x + x2 = 0

Solving
-25 + 200x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '25' to each side of the equation.
-25 + 200x + 25 + x2 = 0 + 25

Reorder the terms:
-25 + 25 + 200x + x2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 200x + x2 = 0 + 25
200x + x2 = 0 + 25

Combine like terms: 0 + 25 = 25
200x + x2 = 25

The x term is 200x.  Take half its coefficient (100).
Square it (10000) and add it to both sides.

Add '10000' to each side of the equation.
200x + 10000 + x2 = 25 + 10000

Reorder the terms:
10000 + 200x + x2 = 25 + 10000

Combine like terms: 25 + 10000 = 10025
10000 + 200x + x2 = 10025

Factor a perfect square on the left side:
(x + 100)(x + 100) = 10025

Calculate the square root of the right side: 100.124921973

Break this problem into two subproblems by setting 
(x + 100) equal to 100.124921973 and -100.124921973.

Subproblem 1

x + 100 = 100.124921973 Simplifying x + 100 = 100.124921973 Reorder the terms: 100 + x = 100.124921973 Solving 100 + x = 100.124921973 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-100' to each side of the equation. 100 + -100 + x = 100.124921973 + -100 Combine like terms: 100 + -100 = 0 0 + x = 100.124921973 + -100 x = 100.124921973 + -100 Combine like terms: 100.124921973 + -100 = 0.124921973 x = 0.124921973 Simplifying x = 0.124921973

Subproblem 2

x + 100 = -100.124921973 Simplifying x + 100 = -100.124921973 Reorder the terms: 100 + x = -100.124921973 Solving 100 + x = -100.124921973 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-100' to each side of the equation. 100 + -100 + x = -100.124921973 + -100 Combine like terms: 100 + -100 = 0 0 + x = -100.124921973 + -100 x = -100.124921973 + -100 Combine like terms: -100.124921973 + -100 = -200.124921973 x = -200.124921973 Simplifying x = -200.124921973

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.124921973, -200.124921973}

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