x^2+4x+4=54

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Solution for x^2+4x+4=54 equation:


Simplifying
x2 + 4x + 4 = 54

Reorder the terms:
4 + 4x + x2 = 54

Solving
4 + 4x + x2 = 54

Solving for variable 'x'.

Reorder the terms:
4 + -54 + 4x + x2 = 54 + -54

Combine like terms: 4 + -54 = -50
-50 + 4x + x2 = 54 + -54

Combine like terms: 54 + -54 = 0
-50 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + 4x + 50 + x2 = 0 + 50

Reorder the terms:
-50 + 50 + 4x + x2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + 4x + x2 = 0 + 50
4x + x2 = 0 + 50

Combine like terms: 0 + 50 = 50
4x + x2 = 50

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 = 50 + 4

Reorder the terms:
4 + 4x + x2 = 50 + 4

Combine like terms: 50 + 4 = 54
4 + 4x + x2 = 54

Factor a perfect square on the left side:
(x + 2)(x + 2) = 54

Calculate the square root of the right side: 7.348469228

Break this problem into two subproblems by setting 
(x + 2) equal to 7.348469228 and -7.348469228.

Subproblem 1

x + 2 = 7.348469228 Simplifying x + 2 = 7.348469228 Reorder the terms: 2 + x = 7.348469228 Solving 2 + x = 7.348469228 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 = 7.348469228 + -2 Combine like terms: 2 + -2 = 0 0 + x = 7.348469228 + -2 x = 7.348469228 + -2 Combine like terms: 7.348469228 + -2 = 5.348469228 x = 5.348469228 Simplifying x = 5.348469228

Subproblem 2

x + 2 = -7.348469228 Simplifying x + 2 = -7.348469228 Reorder the terms: 2 + x = -7.348469228 Solving 2 + x = -7.348469228 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 = -7.348469228 + -2 Combine like terms: 2 + -2 = 0 0 + x = -7.348469228 + -2 x = -7.348469228 + -2 Combine like terms: -7.348469228 + -2 = -9.348469228 x = -9.348469228 Simplifying x = -9.348469228

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.348469228, -9.348469228}

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