2x^2-200x-225=0

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Solution for 2x^2-200x-225=0 equation:


Simplifying
2x2 + -200x + -225 = 0

Reorder the terms:
-225 + -200x + 2x2 = 0

Solving
-225 + -200x + 2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-112.5 + -100x + x2 = 0

Move the constant term to the right:

Add '112.5' to each side of the equation.
-112.5 + -100x + 112.5 + x2 = 0 + 112.5

Reorder the terms:
-112.5 + 112.5 + -100x + x2 = 0 + 112.5

Combine like terms: -112.5 + 112.5 = 0.0
0.0 + -100x + x2 = 0 + 112.5
-100x + x2 = 0 + 112.5

Combine like terms: 0 + 112.5 = 112.5
-100x + x2 = 112.5

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 = 112.5 + 2500

Reorder the terms:
2500 + -100x + x2 = 112.5 + 2500

Combine like terms: 112.5 + 2500 = 2612.5
2500 + -100x + x2 = 2612.5

Factor a perfect square on the left side:
(x + -50)(x + -50) = 2612.5

Calculate the square root of the right side: 51.112620751

Break this problem into two subproblems by setting 
(x + -50) equal to 51.112620751 and -51.112620751.

Subproblem 1

x + -50 = 51.112620751 Simplifying x + -50 = 51.112620751 Reorder the terms: -50 + x = 51.112620751 Solving -50 + x = 51.112620751 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 = 51.112620751 + 50 Combine like terms: -50 + 50 = 0 0 + x = 51.112620751 + 50 x = 51.112620751 + 50 Combine like terms: 51.112620751 + 50 = 101.112620751 x = 101.112620751 Simplifying x = 101.112620751

Subproblem 2

x + -50 = -51.112620751 Simplifying x + -50 = -51.112620751 Reorder the terms: -50 + x = -51.112620751 Solving -50 + x = -51.112620751 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 = -51.112620751 + 50 Combine like terms: -50 + 50 = 0 0 + x = -51.112620751 + 50 x = -51.112620751 + 50 Combine like terms: -51.112620751 + 50 = -1.112620751 x = -1.112620751 Simplifying x = -1.112620751

Solution

The solution to the problem is based on the solutions from the subproblems. x = {101.112620751, -1.112620751}

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