x^2-99x-54=0

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Solution for x^2-99x-54=0 equation:


Simplifying
x2 + -99x + -54 = 0

Reorder the terms:
-54 + -99x + x2 = 0

Solving
-54 + -99x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '54' to each side of the equation.
-54 + -99x + 54 + x2 = 0 + 54

Reorder the terms:
-54 + 54 + -99x + x2 = 0 + 54

Combine like terms: -54 + 54 = 0
0 + -99x + x2 = 0 + 54
-99x + x2 = 0 + 54

Combine like terms: 0 + 54 = 54
-99x + x2 = 54

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 = 54 + 2450.25

Reorder the terms:
2450.25 + -99x + x2 = 54 + 2450.25

Combine like terms: 54 + 2450.25 = 2504.25
2450.25 + -99x + x2 = 2504.25

Factor a perfect square on the left side:
(x + -49.5)(x + -49.5) = 2504.25

Calculate the square root of the right side: 50.042481953

Break this problem into two subproblems by setting 
(x + -49.5) equal to 50.042481953 and -50.042481953.

Subproblem 1

x + -49.5 = 50.042481953 Simplifying x + -49.5 = 50.042481953 Reorder the terms: -49.5 + x = 50.042481953 Solving -49.5 + x = 50.042481953 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 = 50.042481953 + 49.5 Combine like terms: -49.5 + 49.5 = 0.0 0.0 + x = 50.042481953 + 49.5 x = 50.042481953 + 49.5 Combine like terms: 50.042481953 + 49.5 = 99.542481953 x = 99.542481953 Simplifying x = 99.542481953

Subproblem 2

x + -49.5 = -50.042481953 Simplifying x + -49.5 = -50.042481953 Reorder the terms: -49.5 + x = -50.042481953 Solving -49.5 + x = -50.042481953 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 = -50.042481953 + 49.5 Combine like terms: -49.5 + 49.5 = 0.0 0.0 + x = -50.042481953 + 49.5 x = -50.042481953 + 49.5 Combine like terms: -50.042481953 + 49.5 = -0.542481953 x = -0.542481953 Simplifying x = -0.542481953

Solution

The solution to the problem is based on the solutions from the subproblems. x = {99.542481953, -0.542481953}

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