(x+4)2=x(x-14)+5

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Solution for (x+4)2=x(x-14)+5 equation:


Simplifying
(x + 4) * 2 = x(x + -14) + 5

Reorder the terms:
(4 + x) * 2 = x(x + -14) + 5

Reorder the terms for easier multiplication:
2(4 + x) = x(x + -14) + 5
(4 * 2 + x * 2) = x(x + -14) + 5
(8 + 2x) = x(x + -14) + 5

Reorder the terms:
8 + 2x = x(-14 + x) + 5
8 + 2x = (-14 * x + x * x) + 5
8 + 2x = (-14x + x2) + 5

Reorder the terms:
8 + 2x = 5 + -14x + x2

Solving
8 + 2x = 5 + -14x + x2

Solving for variable 'x'.

Reorder the terms:
8 + -5 + 2x + 14x + -1x2 = 5 + -14x + x2 + -5 + 14x + -1x2

Combine like terms: 8 + -5 = 3
3 + 2x + 14x + -1x2 = 5 + -14x + x2 + -5 + 14x + -1x2

Combine like terms: 2x + 14x = 16x
3 + 16x + -1x2 = 5 + -14x + x2 + -5 + 14x + -1x2

Reorder the terms:
3 + 16x + -1x2 = 5 + -5 + -14x + 14x + x2 + -1x2

Combine like terms: 5 + -5 = 0
3 + 16x + -1x2 = 0 + -14x + 14x + x2 + -1x2
3 + 16x + -1x2 = -14x + 14x + x2 + -1x2

Combine like terms: -14x + 14x = 0
3 + 16x + -1x2 = 0 + x2 + -1x2
3 + 16x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
3 + 16x + -1x2 = 0

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

Divide each side by '-1'.
-3 + -16x + x2 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -16x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + -16x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -16x + x2 = 0 + 3
-16x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
-16x + x2 = 3

The x term is -16x.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16x + 64 + x2 = 3 + 64

Reorder the terms:
64 + -16x + x2 = 3 + 64

Combine like terms: 3 + 64 = 67
64 + -16x + x2 = 67

Factor a perfect square on the left side:
(x + -8)(x + -8) = 67

Calculate the square root of the right side: 8.185352772

Break this problem into two subproblems by setting 
(x + -8) equal to 8.185352772 and -8.185352772.

Subproblem 1

x + -8 = 8.185352772 Simplifying x + -8 = 8.185352772 Reorder the terms: -8 + x = 8.185352772 Solving -8 + x = 8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 8.185352772 + 8 Combine like terms: -8 + 8 = 0 0 + x = 8.185352772 + 8 x = 8.185352772 + 8 Combine like terms: 8.185352772 + 8 = 16.185352772 x = 16.185352772 Simplifying x = 16.185352772

Subproblem 2

x + -8 = -8.185352772 Simplifying x + -8 = -8.185352772 Reorder the terms: -8 + x = -8.185352772 Solving -8 + x = -8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = -8.185352772 + 8 Combine like terms: -8 + 8 = 0 0 + x = -8.185352772 + 8 x = -8.185352772 + 8 Combine like terms: -8.185352772 + 8 = -0.185352772 x = -0.185352772 Simplifying x = -0.185352772

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.185352772, -0.185352772}

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