x^2+6x=29

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Solution for x^2+6x=29 equation:


Simplifying
x2 + 6x = 29

Reorder the terms:
6x + x2 = 29

Solving
6x + x2 = 29

Solving for variable 'x'.

Reorder the terms:
-29 + 6x + x2 = 29 + -29

Combine like terms: 29 + -29 = 0
-29 + 6x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '29' to each side of the equation.
-29 + 6x + 29 + x2 = 0 + 29

Reorder the terms:
-29 + 29 + 6x + x2 = 0 + 29

Combine like terms: -29 + 29 = 0
0 + 6x + x2 = 0 + 29
6x + x2 = 0 + 29

Combine like terms: 0 + 29 = 29
6x + x2 = 29

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 29 + 9

Reorder the terms:
9 + 6x + x2 = 29 + 9

Combine like terms: 29 + 9 = 38
9 + 6x + x2 = 38

Factor a perfect square on the left side:
(x + 3)(x + 3) = 38

Calculate the square root of the right side: 6.164414003

Break this problem into two subproblems by setting 
(x + 3) equal to 6.164414003 and -6.164414003.

Subproblem 1

x + 3 = 6.164414003 Simplifying x + 3 = 6.164414003 Reorder the terms: 3 + x = 6.164414003 Solving 3 + x = 6.164414003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 6.164414003 + -3 Combine like terms: 3 + -3 = 0 0 + x = 6.164414003 + -3 x = 6.164414003 + -3 Combine like terms: 6.164414003 + -3 = 3.164414003 x = 3.164414003 Simplifying x = 3.164414003

Subproblem 2

x + 3 = -6.164414003 Simplifying x + 3 = -6.164414003 Reorder the terms: 3 + x = -6.164414003 Solving 3 + x = -6.164414003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -6.164414003 + -3 Combine like terms: 3 + -3 = 0 0 + x = -6.164414003 + -3 x = -6.164414003 + -3 Combine like terms: -6.164414003 + -3 = -9.164414003 x = -9.164414003 Simplifying x = -9.164414003

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.164414003, -9.164414003}

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