x+4=x^2-12x+38

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Solution for x+4=x^2-12x+38 equation:


Simplifying
x + 4 = x2 + -12x + 38

Reorder the terms:
4 + x = x2 + -12x + 38

Reorder the terms:
4 + x = 38 + -12x + x2

Solving
4 + x = 38 + -12x + x2

Solving for variable 'x'.

Reorder the terms:
4 + -38 + x + 12x + -1x2 = 38 + -12x + x2 + -38 + 12x + -1x2

Combine like terms: 4 + -38 = -34
-34 + x + 12x + -1x2 = 38 + -12x + x2 + -38 + 12x + -1x2

Combine like terms: x + 12x = 13x
-34 + 13x + -1x2 = 38 + -12x + x2 + -38 + 12x + -1x2

Reorder the terms:
-34 + 13x + -1x2 = 38 + -38 + -12x + 12x + x2 + -1x2

Combine like terms: 38 + -38 = 0
-34 + 13x + -1x2 = 0 + -12x + 12x + x2 + -1x2
-34 + 13x + -1x2 = -12x + 12x + x2 + -1x2

Combine like terms: -12x + 12x = 0
-34 + 13x + -1x2 = 0 + x2 + -1x2
-34 + 13x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-34 + 13x + -1x2 = 0

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

Divide each side by '-1'.
34 + -13x + x2 = 0

Move the constant term to the right:

Add '-34' to each side of the equation.
34 + -13x + -34 + x2 = 0 + -34

Reorder the terms:
34 + -34 + -13x + x2 = 0 + -34

Combine like terms: 34 + -34 = 0
0 + -13x + x2 = 0 + -34
-13x + x2 = 0 + -34

Combine like terms: 0 + -34 = -34
-13x + x2 = -34

The x term is -13x.  Take half its coefficient (-6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
-13x + 42.25 + x2 = -34 + 42.25

Reorder the terms:
42.25 + -13x + x2 = -34 + 42.25

Combine like terms: -34 + 42.25 = 8.25
42.25 + -13x + x2 = 8.25

Factor a perfect square on the left side:
(x + -6.5)(x + -6.5) = 8.25

Calculate the square root of the right side: 2.872281323

Break this problem into two subproblems by setting 
(x + -6.5) equal to 2.872281323 and -2.872281323.

Subproblem 1

x + -6.5 = 2.872281323 Simplifying x + -6.5 = 2.872281323 Reorder the terms: -6.5 + x = 2.872281323 Solving -6.5 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = 2.872281323 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = 2.872281323 + 6.5 x = 2.872281323 + 6.5 Combine like terms: 2.872281323 + 6.5 = 9.372281323 x = 9.372281323 Simplifying x = 9.372281323

Subproblem 2

x + -6.5 = -2.872281323 Simplifying x + -6.5 = -2.872281323 Reorder the terms: -6.5 + x = -2.872281323 Solving -6.5 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = -2.872281323 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = -2.872281323 + 6.5 x = -2.872281323 + 6.5 Combine like terms: -2.872281323 + 6.5 = 3.627718677 x = 3.627718677 Simplifying x = 3.627718677

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.372281323, 3.627718677}

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