29-x=x^2+1

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Solution for 29-x=x^2+1 equation:


Simplifying
29 + -1x = x2 + 1

Reorder the terms:
29 + -1x = 1 + x2

Solving
29 + -1x = 1 + x2

Solving for variable 'x'.

Reorder the terms:
29 + -1 + -1x + -1x2 = 1 + x2 + -1 + -1x2

Combine like terms: 29 + -1 = 28
28 + -1x + -1x2 = 1 + x2 + -1 + -1x2

Reorder the terms:
28 + -1x + -1x2 = 1 + -1 + x2 + -1x2

Combine like terms: 1 + -1 = 0
28 + -1x + -1x2 = 0 + x2 + -1x2
28 + -1x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
28 + -1x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-28 + x + x2 = 0

Move the constant term to the right:

Add '28' to each side of the equation.
-28 + x + 28 + x2 = 0 + 28

Reorder the terms:
-28 + 28 + x + x2 = 0 + 28

Combine like terms: -28 + 28 = 0
0 + x + x2 = 0 + 28
x + x2 = 0 + 28

Combine like terms: 0 + 28 = 28
x + x2 = 28

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.
 + 0.25 + x2 = 28 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 28 + 0.25

Combine like terms: 28 + 0.25 = 28.25
1.25 + x2 = 28.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 28.25

Calculate the square root of the right side: 5.315072906

Break this problem into two subproblems by setting 
(x + 0.5) equal to 5.315072906 and -5.315072906.

Subproblem 1

x + 0.5 = 5.315072906 Simplifying x + 0.5 = 5.315072906 Reorder the terms: 0.5 + x = 5.315072906 Solving 0.5 + x = 5.315072906 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 = 5.315072906 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 5.315072906 + -0.5 x = 5.315072906 + -0.5 Combine like terms: 5.315072906 + -0.5 = 4.815072906 x = 4.815072906 Simplifying x = 4.815072906

Subproblem 2

x + 0.5 = -5.315072906 Simplifying x + 0.5 = -5.315072906 Reorder the terms: 0.5 + x = -5.315072906 Solving 0.5 + x = -5.315072906 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 = -5.315072906 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -5.315072906 + -0.5 x = -5.315072906 + -0.5 Combine like terms: -5.315072906 + -0.5 = -5.815072906 x = -5.815072906 Simplifying x = -5.815072906

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.815072906, -5.815072906}

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