x^2+100x-200=0

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Solution for x^2+100x-200=0 equation:


Simplifying
x2 + 100x + -200 = 0

Reorder the terms:
-200 + 100x + x2 = 0

Solving
-200 + 100x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '200' to each side of the equation.
-200 + 100x + 200 + x2 = 0 + 200

Reorder the terms:
-200 + 200 + 100x + x2 = 0 + 200

Combine like terms: -200 + 200 = 0
0 + 100x + x2 = 0 + 200
100x + x2 = 0 + 200

Combine like terms: 0 + 200 = 200
100x + x2 = 200

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 = 200 + 2500

Reorder the terms:
2500 + 100x + x2 = 200 + 2500

Combine like terms: 200 + 2500 = 2700
2500 + 100x + x2 = 2700

Factor a perfect square on the left side:
(x + 50)(x + 50) = 2700

Calculate the square root of the right side: 51.961524227

Break this problem into two subproblems by setting 
(x + 50) equal to 51.961524227 and -51.961524227.

Subproblem 1

x + 50 = 51.961524227 Simplifying x + 50 = 51.961524227 Reorder the terms: 50 + x = 51.961524227 Solving 50 + x = 51.961524227 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 = 51.961524227 + -50 Combine like terms: 50 + -50 = 0 0 + x = 51.961524227 + -50 x = 51.961524227 + -50 Combine like terms: 51.961524227 + -50 = 1.961524227 x = 1.961524227 Simplifying x = 1.961524227

Subproblem 2

x + 50 = -51.961524227 Simplifying x + 50 = -51.961524227 Reorder the terms: 50 + x = -51.961524227 Solving 50 + x = -51.961524227 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 = -51.961524227 + -50 Combine like terms: 50 + -50 = 0 0 + x = -51.961524227 + -50 x = -51.961524227 + -50 Combine like terms: -51.961524227 + -50 = -101.961524227 x = -101.961524227 Simplifying x = -101.961524227

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.961524227, -101.961524227}

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