(x^2-16x+64)-5=0

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Solution for (x^2-16x+64)-5=0 equation:


Simplifying
(x2 + -16x + 64) + -5 = 0

Reorder the terms:
(64 + -16x + x2) + -5 = 0

Remove parenthesis around (64 + -16x + x2)
64 + -16x + x2 + -5 = 0

Reorder the terms:
64 + -5 + -16x + x2 = 0

Combine like terms: 64 + -5 = 59
59 + -16x + x2 = 0

Solving
59 + -16x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-59' to each side of the equation.
59 + -16x + -59 + x2 = 0 + -59

Reorder the terms:
59 + -59 + -16x + x2 = 0 + -59

Combine like terms: 59 + -59 = 0
0 + -16x + x2 = 0 + -59
-16x + x2 = 0 + -59

Combine like terms: 0 + -59 = -59
-16x + x2 = -59

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 = -59 + 64

Reorder the terms:
64 + -16x + x2 = -59 + 64

Combine like terms: -59 + 64 = 5
64 + -16x + x2 = 5

Factor a perfect square on the left side:
(x + -8)(x + -8) = 5

Calculate the square root of the right side: 2.236067978

Break this problem into two subproblems by setting 
(x + -8) equal to 2.236067978 and -2.236067978.

Subproblem 1

x + -8 = 2.236067978 Simplifying x + -8 = 2.236067978 Reorder the terms: -8 + x = 2.236067978 Solving -8 + x = 2.236067978 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 = 2.236067978 + 8 Combine like terms: -8 + 8 = 0 0 + x = 2.236067978 + 8 x = 2.236067978 + 8 Combine like terms: 2.236067978 + 8 = 10.236067978 x = 10.236067978 Simplifying x = 10.236067978

Subproblem 2

x + -8 = -2.236067978 Simplifying x + -8 = -2.236067978 Reorder the terms: -8 + x = -2.236067978 Solving -8 + x = -2.236067978 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 = -2.236067978 + 8 Combine like terms: -8 + 8 = 0 0 + x = -2.236067978 + 8 x = -2.236067978 + 8 Combine like terms: -2.236067978 + 8 = 5.763932022 x = 5.763932022 Simplifying x = 5.763932022

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.236067978, 5.763932022}

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