(x+2)(x+2)=432

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Solution for (x+2)(x+2)=432 equation:


Simplifying
(x + 2)(x + 2) = 432

Reorder the terms:
(2 + x)(x + 2) = 432

Reorder the terms:
(2 + x)(2 + x) = 432

Multiply (2 + x) * (2 + x)
(2(2 + x) + x(2 + x)) = 432
((2 * 2 + x * 2) + x(2 + x)) = 432
((4 + 2x) + x(2 + x)) = 432
(4 + 2x + (2 * x + x * x)) = 432
(4 + 2x + (2x + x2)) = 432

Combine like terms: 2x + 2x = 4x
(4 + 4x + x2) = 432

Solving
4 + 4x + x2 = 432

Solving for variable 'x'.

Reorder the terms:
4 + -432 + 4x + x2 = 432 + -432

Combine like terms: 4 + -432 = -428
-428 + 4x + x2 = 432 + -432

Combine like terms: 432 + -432 = 0
-428 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '428' to each side of the equation.
-428 + 4x + 428 + x2 = 0 + 428

Reorder the terms:
-428 + 428 + 4x + x2 = 0 + 428

Combine like terms: -428 + 428 = 0
0 + 4x + x2 = 0 + 428
4x + x2 = 0 + 428

Combine like terms: 0 + 428 = 428
4x + x2 = 428

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 = 428 + 4

Reorder the terms:
4 + 4x + x2 = 428 + 4

Combine like terms: 428 + 4 = 432
4 + 4x + x2 = 432

Factor a perfect square on the left side:
(x + 2)(x + 2) = 432

Calculate the square root of the right side: 20.784609691

Break this problem into two subproblems by setting 
(x + 2) equal to 20.784609691 and -20.784609691.

Subproblem 1

x + 2 = 20.784609691 Simplifying x + 2 = 20.784609691 Reorder the terms: 2 + x = 20.784609691 Solving 2 + x = 20.784609691 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 = 20.784609691 + -2 Combine like terms: 2 + -2 = 0 0 + x = 20.784609691 + -2 x = 20.784609691 + -2 Combine like terms: 20.784609691 + -2 = 18.784609691 x = 18.784609691 Simplifying x = 18.784609691

Subproblem 2

x + 2 = -20.784609691 Simplifying x + 2 = -20.784609691 Reorder the terms: 2 + x = -20.784609691 Solving 2 + x = -20.784609691 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 = -20.784609691 + -2 Combine like terms: 2 + -2 = 0 0 + x = -20.784609691 + -2 x = -20.784609691 + -2 Combine like terms: -20.784609691 + -2 = -22.784609691 x = -22.784609691 Simplifying x = -22.784609691

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.784609691, -22.784609691}

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