x^2+x-484=0

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Solution for x^2+x-484=0 equation:


Simplifying
x2 + x + -484 = 0

Reorder the terms:
-484 + x + x2 = 0

Solving
-484 + x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '484' to each side of the equation.
-484 + x + 484 + x2 = 0 + 484

Reorder the terms:
-484 + 484 + x + x2 = 0 + 484

Combine like terms: -484 + 484 = 0
0 + x + x2 = 0 + 484
x + x2 = 0 + 484

Combine like terms: 0 + 484 = 484
x + x2 = 484

The x term is x.  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.
x + 0.25 + x2 = 484 + 0.25

Reorder the terms:
0.25 + x + x2 = 484 + 0.25

Combine like terms: 484 + 0.25 = 484.25
0.25 + x + x2 = 484.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 484.25

Calculate the square root of the right side: 22.005681085

Break this problem into two subproblems by setting 
(x + 0.5) equal to 22.005681085 and -22.005681085.

Subproblem 1

x + 0.5 = 22.005681085 Simplifying x + 0.5 = 22.005681085 Reorder the terms: 0.5 + x = 22.005681085 Solving 0.5 + x = 22.005681085 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 = 22.005681085 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 22.005681085 + -0.5 x = 22.005681085 + -0.5 Combine like terms: 22.005681085 + -0.5 = 21.505681085 x = 21.505681085 Simplifying x = 21.505681085

Subproblem 2

x + 0.5 = -22.005681085 Simplifying x + 0.5 = -22.005681085 Reorder the terms: 0.5 + x = -22.005681085 Solving 0.5 + x = -22.005681085 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 = -22.005681085 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -22.005681085 + -0.5 x = -22.005681085 + -0.5 Combine like terms: -22.005681085 + -0.5 = -22.505681085 x = -22.505681085 Simplifying x = -22.505681085

Solution

The solution to the problem is based on the solutions from the subproblems. x = {21.505681085, -22.505681085}

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