(x^2)-(2x)-50=249

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Solution for (x^2)-(2x)-50=249 equation:


Simplifying
(x2) + -1(2x) + -50 = 249
x2 + -1(2x) + -50 = 249

Remove parenthesis around (2x)
x2 + -1 * 2x + -50 = 249

Multiply -1 * 2
x2 + -2x + -50 = 249

Reorder the terms:
-50 + -2x + x2 = 249

Solving
-50 + -2x + x2 = 249

Solving for variable 'x'.

Reorder the terms:
-50 + -249 + -2x + x2 = 249 + -249

Combine like terms: -50 + -249 = -299
-299 + -2x + x2 = 249 + -249

Combine like terms: 249 + -249 = 0
-299 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '299' to each side of the equation.
-299 + -2x + 299 + x2 = 0 + 299

Reorder the terms:
-299 + 299 + -2x + x2 = 0 + 299

Combine like terms: -299 + 299 = 0
0 + -2x + x2 = 0 + 299
-2x + x2 = 0 + 299

Combine like terms: 0 + 299 = 299
-2x + x2 = 299

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 299 + 1

Reorder the terms:
1 + -2x + x2 = 299 + 1

Combine like terms: 299 + 1 = 300
1 + -2x + x2 = 300

Factor a perfect square on the left side:
(x + -1)(x + -1) = 300

Calculate the square root of the right side: 17.320508076

Break this problem into two subproblems by setting 
(x + -1) equal to 17.320508076 and -17.320508076.

Subproblem 1

x + -1 = 17.320508076 Simplifying x + -1 = 17.320508076 Reorder the terms: -1 + x = 17.320508076 Solving -1 + x = 17.320508076 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 17.320508076 + 1 Combine like terms: -1 + 1 = 0 0 + x = 17.320508076 + 1 x = 17.320508076 + 1 Combine like terms: 17.320508076 + 1 = 18.320508076 x = 18.320508076 Simplifying x = 18.320508076

Subproblem 2

x + -1 = -17.320508076 Simplifying x + -1 = -17.320508076 Reorder the terms: -1 + x = -17.320508076 Solving -1 + x = -17.320508076 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -17.320508076 + 1 Combine like terms: -1 + 1 = 0 0 + x = -17.320508076 + 1 x = -17.320508076 + 1 Combine like terms: -17.320508076 + 1 = -16.320508076 x = -16.320508076 Simplifying x = -16.320508076

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.320508076, -16.320508076}

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