x^2-x-33=0

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Solution for x^2-x-33=0 equation:


Simplifying
x2 + -1x + -33 = 0

Reorder the terms:
-33 + -1x + x2 = 0

Solving
-33 + -1x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '33' to each side of the equation.
-33 + -1x + 33 + x2 = 0 + 33

Reorder the terms:
-33 + 33 + -1x + x2 = 0 + 33

Combine like terms: -33 + 33 = 0
0 + -1x + x2 = 0 + 33
-1x + x2 = 0 + 33

Combine like terms: 0 + 33 = 33
-1x + x2 = 33

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 33 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 33 + 0.25

Combine like terms: 33 + 0.25 = 33.25
0.25 + -1x + x2 = 33.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 33.25

Calculate the square root of the right side: 5.766281297

Break this problem into two subproblems by setting 
(x + -0.5) equal to 5.766281297 and -5.766281297.

Subproblem 1

x + -0.5 = 5.766281297 Simplifying x + -0.5 = 5.766281297 Reorder the terms: -0.5 + x = 5.766281297 Solving -0.5 + x = 5.766281297 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 5.766281297 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 5.766281297 + 0.5 x = 5.766281297 + 0.5 Combine like terms: 5.766281297 + 0.5 = 6.266281297 x = 6.266281297 Simplifying x = 6.266281297

Subproblem 2

x + -0.5 = -5.766281297 Simplifying x + -0.5 = -5.766281297 Reorder the terms: -0.5 + x = -5.766281297 Solving -0.5 + x = -5.766281297 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -5.766281297 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -5.766281297 + 0.5 x = -5.766281297 + 0.5 Combine like terms: -5.766281297 + 0.5 = -5.266281297 x = -5.266281297 Simplifying x = -5.266281297

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.266281297, -5.266281297}

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