192=(x+2)(x+4)

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Solution for 192=(x+2)(x+4) equation:


Simplifying
192 = (x + 2)(x + 4)

Reorder the terms:
192 = (2 + x)(x + 4)

Reorder the terms:
192 = (2 + x)(4 + x)

Multiply (2 + x) * (4 + x)
192 = (2(4 + x) + x(4 + x))
192 = ((4 * 2 + x * 2) + x(4 + x))
192 = ((8 + 2x) + x(4 + x))
192 = (8 + 2x + (4 * x + x * x))
192 = (8 + 2x + (4x + x2))

Combine like terms: 2x + 4x = 6x
192 = (8 + 6x + x2)

Solving
192 = 8 + 6x + x2

Solving for variable 'x'.

Combine like terms: 192 + -8 = 184
184 + -6x + -1x2 = 8 + 6x + x2 + -8 + -6x + -1x2

Reorder the terms:
184 + -6x + -1x2 = 8 + -8 + 6x + -6x + x2 + -1x2

Combine like terms: 8 + -8 = 0
184 + -6x + -1x2 = 0 + 6x + -6x + x2 + -1x2
184 + -6x + -1x2 = 6x + -6x + x2 + -1x2

Combine like terms: 6x + -6x = 0
184 + -6x + -1x2 = 0 + x2 + -1x2
184 + -6x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
184 + -6x + -1x2 = 0

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

Divide each side by '-1'.
-184 + 6x + x2 = 0

Move the constant term to the right:

Add '184' to each side of the equation.
-184 + 6x + 184 + x2 = 0 + 184

Reorder the terms:
-184 + 184 + 6x + x2 = 0 + 184

Combine like terms: -184 + 184 = 0
0 + 6x + x2 = 0 + 184
6x + x2 = 0 + 184

Combine like terms: 0 + 184 = 184
6x + x2 = 184

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 = 184 + 9

Reorder the terms:
9 + 6x + x2 = 184 + 9

Combine like terms: 184 + 9 = 193
9 + 6x + x2 = 193

Factor a perfect square on the left side:
(x + 3)(x + 3) = 193

Calculate the square root of the right side: 13.892443989

Break this problem into two subproblems by setting 
(x + 3) equal to 13.892443989 and -13.892443989.

Subproblem 1

x + 3 = 13.892443989 Simplifying x + 3 = 13.892443989 Reorder the terms: 3 + x = 13.892443989 Solving 3 + x = 13.892443989 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 = 13.892443989 + -3 Combine like terms: 3 + -3 = 0 0 + x = 13.892443989 + -3 x = 13.892443989 + -3 Combine like terms: 13.892443989 + -3 = 10.892443989 x = 10.892443989 Simplifying x = 10.892443989

Subproblem 2

x + 3 = -13.892443989 Simplifying x + 3 = -13.892443989 Reorder the terms: 3 + x = -13.892443989 Solving 3 + x = -13.892443989 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 = -13.892443989 + -3 Combine like terms: 3 + -3 = 0 0 + x = -13.892443989 + -3 x = -13.892443989 + -3 Combine like terms: -13.892443989 + -3 = -16.892443989 x = -16.892443989 Simplifying x = -16.892443989

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.892443989, -16.892443989}

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