(X^2)+X-234=0

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Solution for (X^2)+X-234=0 equation:


Simplifying
(X2) + X + -234 = 0
X2 + X + -234 = 0

Reorder the terms:
-234 + X + X2 = 0

Solving
-234 + X + X2 = 0

Solving for variable 'X'.

Begin completing the square.

Move the constant term to the right:

Add '234' to each side of the equation.
-234 + X + 234 + X2 = 0 + 234

Reorder the terms:
-234 + 234 + X + X2 = 0 + 234

Combine like terms: -234 + 234 = 0
0 + X + X2 = 0 + 234
X + X2 = 0 + 234

Combine like terms: 0 + 234 = 234
X + X2 = 234

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 = 234 + 0.25

Reorder the terms:
0.25 + X + X2 = 234 + 0.25

Combine like terms: 234 + 0.25 = 234.25
0.25 + X + X2 = 234.25

Factor a perfect square on the left side:
(X + 0.5)(X + 0.5) = 234.25

Calculate the square root of the right side: 15.305227865

Break this problem into two subproblems by setting 
(X + 0.5) equal to 15.305227865 and -15.305227865.

Subproblem 1

X + 0.5 = 15.305227865 Simplifying X + 0.5 = 15.305227865 Reorder the terms: 0.5 + X = 15.305227865 Solving 0.5 + X = 15.305227865 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 = 15.305227865 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = 15.305227865 + -0.5 X = 15.305227865 + -0.5 Combine like terms: 15.305227865 + -0.5 = 14.805227865 X = 14.805227865 Simplifying X = 14.805227865

Subproblem 2

X + 0.5 = -15.305227865 Simplifying X + 0.5 = -15.305227865 Reorder the terms: 0.5 + X = -15.305227865 Solving 0.5 + X = -15.305227865 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 = -15.305227865 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = -15.305227865 + -0.5 X = -15.305227865 + -0.5 Combine like terms: -15.305227865 + -0.5 = -15.805227865 X = -15.805227865 Simplifying X = -15.805227865

Solution

The solution to the problem is based on the solutions from the subproblems. X = {14.805227865, -15.805227865}

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