x^2-11x-150=0

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Solution for x^2-11x-150=0 equation:


Simplifying
x2 + -11x + -150 = 0

Reorder the terms:
-150 + -11x + x2 = 0

Solving
-150 + -11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '150' to each side of the equation.
-150 + -11x + 150 + x2 = 0 + 150

Reorder the terms:
-150 + 150 + -11x + x2 = 0 + 150

Combine like terms: -150 + 150 = 0
0 + -11x + x2 = 0 + 150
-11x + x2 = 0 + 150

Combine like terms: 0 + 150 = 150
-11x + x2 = 150

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = 150 + 30.25

Reorder the terms:
30.25 + -11x + x2 = 150 + 30.25

Combine like terms: 150 + 30.25 = 180.25
30.25 + -11x + x2 = 180.25

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 180.25

Calculate the square root of the right side: 13.425721582

Break this problem into two subproblems by setting 
(x + -5.5) equal to 13.425721582 and -13.425721582.

Subproblem 1

x + -5.5 = 13.425721582 Simplifying x + -5.5 = 13.425721582 Reorder the terms: -5.5 + x = 13.425721582 Solving -5.5 + x = 13.425721582 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 13.425721582 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 13.425721582 + 5.5 x = 13.425721582 + 5.5 Combine like terms: 13.425721582 + 5.5 = 18.925721582 x = 18.925721582 Simplifying x = 18.925721582

Subproblem 2

x + -5.5 = -13.425721582 Simplifying x + -5.5 = -13.425721582 Reorder the terms: -5.5 + x = -13.425721582 Solving -5.5 + x = -13.425721582 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -13.425721582 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -13.425721582 + 5.5 x = -13.425721582 + 5.5 Combine like terms: -13.425721582 + 5.5 = -7.925721582 x = -7.925721582 Simplifying x = -7.925721582

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.925721582, -7.925721582}

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