x^2-99x-2=0

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Solution for x^2-99x-2=0 equation:


Simplifying
x2 + -99x + -2 = 0

Reorder the terms:
-2 + -99x + x2 = 0

Solving
-2 + -99x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -99x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -99x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -99x + x2 = 0 + 2
-99x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-99x + x2 = 2

The x term is -99x.  Take half its coefficient (-49.5).
Square it (2450.25) and add it to both sides.

Add '2450.25' to each side of the equation.
-99x + 2450.25 + x2 = 2 + 2450.25

Reorder the terms:
2450.25 + -99x + x2 = 2 + 2450.25

Combine like terms: 2 + 2450.25 = 2452.25
2450.25 + -99x + x2 = 2452.25

Factor a perfect square on the left side:
(x + -49.5)(x + -49.5) = 2452.25

Calculate the square root of the right side: 49.520197899

Break this problem into two subproblems by setting 
(x + -49.5) equal to 49.520197899 and -49.520197899.

Subproblem 1

x + -49.5 = 49.520197899 Simplifying x + -49.5 = 49.520197899 Reorder the terms: -49.5 + x = 49.520197899 Solving -49.5 + x = 49.520197899 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49.5' to each side of the equation. -49.5 + 49.5 + x = 49.520197899 + 49.5 Combine like terms: -49.5 + 49.5 = 0.0 0.0 + x = 49.520197899 + 49.5 x = 49.520197899 + 49.5 Combine like terms: 49.520197899 + 49.5 = 99.020197899 x = 99.020197899 Simplifying x = 99.020197899

Subproblem 2

x + -49.5 = -49.520197899 Simplifying x + -49.5 = -49.520197899 Reorder the terms: -49.5 + x = -49.520197899 Solving -49.5 + x = -49.520197899 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49.5' to each side of the equation. -49.5 + 49.5 + x = -49.520197899 + 49.5 Combine like terms: -49.5 + 49.5 = 0.0 0.0 + x = -49.520197899 + 49.5 x = -49.520197899 + 49.5 Combine like terms: -49.520197899 + 49.5 = -0.020197899 x = -0.020197899 Simplifying x = -0.020197899

Solution

The solution to the problem is based on the solutions from the subproblems. x = {99.020197899, -0.020197899}

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