X^2+X=24

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Solution for X^2+X=24 equation:


Simplifying
X2 + X = 24

Reorder the terms:
X + X2 = 24

Solving
X + X2 = 24

Solving for variable 'X'.

Reorder the terms:
-24 + X + X2 = 24 + -24

Combine like terms: 24 + -24 = 0
-24 + X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + X + 24 + X2 = 0 + 24

Reorder the terms:
-24 + 24 + X + X2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + X + X2 = 0 + 24
X + X2 = 0 + 24

Combine like terms: 0 + 24 = 24
X + X2 = 24

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 = 24 + 0.25

Reorder the terms:
0.25 + X + X2 = 24 + 0.25

Combine like terms: 24 + 0.25 = 24.25
0.25 + X + X2 = 24.25

Factor a perfect square on the left side:
(X + 0.5)(X + 0.5) = 24.25

Calculate the square root of the right side: 4.924428901

Break this problem into two subproblems by setting 
(X + 0.5) equal to 4.924428901 and -4.924428901.

Subproblem 1

X + 0.5 = 4.924428901 Simplifying X + 0.5 = 4.924428901 Reorder the terms: 0.5 + X = 4.924428901 Solving 0.5 + X = 4.924428901 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 = 4.924428901 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = 4.924428901 + -0.5 X = 4.924428901 + -0.5 Combine like terms: 4.924428901 + -0.5 = 4.424428901 X = 4.424428901 Simplifying X = 4.424428901

Subproblem 2

X + 0.5 = -4.924428901 Simplifying X + 0.5 = -4.924428901 Reorder the terms: 0.5 + X = -4.924428901 Solving 0.5 + X = -4.924428901 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 = -4.924428901 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = -4.924428901 + -0.5 X = -4.924428901 + -0.5 Combine like terms: -4.924428901 + -0.5 = -5.424428901 X = -5.424428901 Simplifying X = -5.424428901

Solution

The solution to the problem is based on the solutions from the subproblems. X = {4.424428901, -5.424428901}

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