((x+2)*(x+2))-4=3

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Solution for ((x+2)*(x+2))-4=3 equation:


Simplifying
((x + 2)(x + 2)) + -4 = 3

Reorder the terms:
((2 + x)(x + 2)) + -4 = 3

Reorder the terms:
((2 + x)(2 + x)) + -4 = 3

Multiply (2 + x) * (2 + x)
((2(2 + x) + x(2 + x))) + -4 = 3
(((2 * 2 + x * 2) + x(2 + x))) + -4 = 3
(((4 + 2x) + x(2 + x))) + -4 = 3
((4 + 2x + (2 * x + x * x))) + -4 = 3
((4 + 2x + (2x + x2))) + -4 = 3

Combine like terms: 2x + 2x = 4x
((4 + 4x + x2)) + -4 = 3
(4 + 4x + x2) + -4 = 3

Remove parenthesis around (4 + 4x + x2)
4 + 4x + x2 + -4 = 3

Reorder the terms:
4 + -4 + 4x + x2 = 3

Combine like terms: 4 + -4 = 0
0 + 4x + x2 = 3
4x + x2 = 3

Solving
4x + x2 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + 4x + x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 4x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 4x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 4x + x2 = 0 + 3
4x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
4x + x2 = 3

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 = 3 + 4

Reorder the terms:
4 + 4x + x2 = 3 + 4

Combine like terms: 3 + 4 = 7
4 + 4x + x2 = 7

Factor a perfect square on the left side:
(x + 2)(x + 2) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + 2) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + 2 = 2.645751311 Simplifying x + 2 = 2.645751311 Reorder the terms: 2 + x = 2.645751311 Solving 2 + x = 2.645751311 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 = 2.645751311 + -2 Combine like terms: 2 + -2 = 0 0 + x = 2.645751311 + -2 x = 2.645751311 + -2 Combine like terms: 2.645751311 + -2 = 0.645751311 x = 0.645751311 Simplifying x = 0.645751311

Subproblem 2

x + 2 = -2.645751311 Simplifying x + 2 = -2.645751311 Reorder the terms: 2 + x = -2.645751311 Solving 2 + x = -2.645751311 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 = -2.645751311 + -2 Combine like terms: 2 + -2 = 0 0 + x = -2.645751311 + -2 x = -2.645751311 + -2 Combine like terms: -2.645751311 + -2 = -4.645751311 x = -4.645751311 Simplifying x = -4.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.645751311, -4.645751311}

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