x^2+29x+100=x

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Solution for x^2+29x+100=x equation:


Simplifying
x2 + 29x + 100 = x

Reorder the terms:
100 + 29x + x2 = x

Solving
100 + 29x + x2 = x

Solving for variable 'x'.

Reorder the terms:
100 + 29x + -1x + x2 = x + -1x

Combine like terms: 29x + -1x = 28x
100 + 28x + x2 = x + -1x

Combine like terms: x + -1x = 0
100 + 28x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-100' to each side of the equation.
100 + 28x + -100 + x2 = 0 + -100

Reorder the terms:
100 + -100 + 28x + x2 = 0 + -100

Combine like terms: 100 + -100 = 0
0 + 28x + x2 = 0 + -100
28x + x2 = 0 + -100

Combine like terms: 0 + -100 = -100
28x + x2 = -100

The x term is 28x.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28x + 196 + x2 = -100 + 196

Reorder the terms:
196 + 28x + x2 = -100 + 196

Combine like terms: -100 + 196 = 96
196 + 28x + x2 = 96

Factor a perfect square on the left side:
(x + 14)(x + 14) = 96

Calculate the square root of the right side: 9.797958971

Break this problem into two subproblems by setting 
(x + 14) equal to 9.797958971 and -9.797958971.

Subproblem 1

x + 14 = 9.797958971 Simplifying x + 14 = 9.797958971 Reorder the terms: 14 + x = 9.797958971 Solving 14 + x = 9.797958971 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 9.797958971 + -14 Combine like terms: 14 + -14 = 0 0 + x = 9.797958971 + -14 x = 9.797958971 + -14 Combine like terms: 9.797958971 + -14 = -4.202041029 x = -4.202041029 Simplifying x = -4.202041029

Subproblem 2

x + 14 = -9.797958971 Simplifying x + 14 = -9.797958971 Reorder the terms: 14 + x = -9.797958971 Solving 14 + x = -9.797958971 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = -9.797958971 + -14 Combine like terms: 14 + -14 = 0 0 + x = -9.797958971 + -14 x = -9.797958971 + -14 Combine like terms: -9.797958971 + -14 = -23.797958971 x = -23.797958971 Simplifying x = -23.797958971

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.202041029, -23.797958971}

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