x(x+4)=29

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Solution for x(x+4)=29 equation:


Simplifying
x(x + 4) = 29

Reorder the terms:
x(4 + x) = 29
(4 * x + x * x) = 29
(4x + x2) = 29

Solving
4x + x2 = 29

Solving for variable 'x'.

Reorder the terms:
-29 + 4x + x2 = 29 + -29

Combine like terms: 29 + -29 = 0
-29 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '29' to each side of the equation.
-29 + 4x + 29 + x2 = 0 + 29

Reorder the terms:
-29 + 29 + 4x + x2 = 0 + 29

Combine like terms: -29 + 29 = 0
0 + 4x + x2 = 0 + 29
4x + x2 = 0 + 29

Combine like terms: 0 + 29 = 29
4x + x2 = 29

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 29 + 4

Reorder the terms:
4 + 4x + x2 = 29 + 4

Combine like terms: 29 + 4 = 33
4 + 4x + x2 = 33

Factor a perfect square on the left side:
(x + 2)(x + 2) = 33

Calculate the square root of the right side: 5.744562647

Break this problem into two subproblems by setting 
(x + 2) equal to 5.744562647 and -5.744562647.

Subproblem 1

x + 2 = 5.744562647 Simplifying x + 2 = 5.744562647 Reorder the terms: 2 + x = 5.744562647 Solving 2 + x = 5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 5.744562647 + -2 Combine like terms: 2 + -2 = 0 0 + x = 5.744562647 + -2 x = 5.744562647 + -2 Combine like terms: 5.744562647 + -2 = 3.744562647 x = 3.744562647 Simplifying x = 3.744562647

Subproblem 2

x + 2 = -5.744562647 Simplifying x + 2 = -5.744562647 Reorder the terms: 2 + x = -5.744562647 Solving 2 + x = -5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -5.744562647 + -2 Combine like terms: 2 + -2 = 0 0 + x = -5.744562647 + -2 x = -5.744562647 + -2 Combine like terms: -5.744562647 + -2 = -7.744562647 x = -7.744562647 Simplifying x = -7.744562647

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.744562647, -7.744562647}

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