(x+4)(x+4)=60

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Solution for (x+4)(x+4)=60 equation:


Simplifying
(x + 4)(x + 4) = 60

Reorder the terms:
(4 + x)(x + 4) = 60

Reorder the terms:
(4 + x)(4 + x) = 60

Multiply (4 + x) * (4 + x)
(4(4 + x) + x(4 + x)) = 60
((4 * 4 + x * 4) + x(4 + x)) = 60
((16 + 4x) + x(4 + x)) = 60
(16 + 4x + (4 * x + x * x)) = 60
(16 + 4x + (4x + x2)) = 60

Combine like terms: 4x + 4x = 8x
(16 + 8x + x2) = 60

Solving
16 + 8x + x2 = 60

Solving for variable 'x'.

Reorder the terms:
16 + -60 + 8x + x2 = 60 + -60

Combine like terms: 16 + -60 = -44
-44 + 8x + x2 = 60 + -60

Combine like terms: 60 + -60 = 0
-44 + 8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + 8x + 44 + x2 = 0 + 44

Reorder the terms:
-44 + 44 + 8x + x2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + 8x + x2 = 0 + 44
8x + x2 = 0 + 44

Combine like terms: 0 + 44 = 44
8x + x2 = 44

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 44 + 16

Reorder the terms:
16 + 8x + x2 = 44 + 16

Combine like terms: 44 + 16 = 60
16 + 8x + x2 = 60

Factor a perfect square on the left side:
(x + 4)(x + 4) = 60

Calculate the square root of the right side: 7.745966692

Break this problem into two subproblems by setting 
(x + 4) equal to 7.745966692 and -7.745966692.

Subproblem 1

x + 4 = 7.745966692 Simplifying x + 4 = 7.745966692 Reorder the terms: 4 + x = 7.745966692 Solving 4 + x = 7.745966692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 7.745966692 + -4 Combine like terms: 4 + -4 = 0 0 + x = 7.745966692 + -4 x = 7.745966692 + -4 Combine like terms: 7.745966692 + -4 = 3.745966692 x = 3.745966692 Simplifying x = 3.745966692

Subproblem 2

x + 4 = -7.745966692 Simplifying x + 4 = -7.745966692 Reorder the terms: 4 + x = -7.745966692 Solving 4 + x = -7.745966692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -7.745966692 + -4 Combine like terms: 4 + -4 = 0 0 + x = -7.745966692 + -4 x = -7.745966692 + -4 Combine like terms: -7.745966692 + -4 = -11.745966692 x = -11.745966692 Simplifying x = -11.745966692

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.745966692, -11.745966692}

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