x^2-16x+23=0

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Solution for x^2-16x+23=0 equation:


Simplifying
x2 + -16x + 23 = 0

Reorder the terms:
23 + -16x + x2 = 0

Solving
23 + -16x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-23' to each side of the equation.
23 + -16x + -23 + x2 = 0 + -23

Reorder the terms:
23 + -23 + -16x + x2 = 0 + -23

Combine like terms: 23 + -23 = 0
0 + -16x + x2 = 0 + -23
-16x + x2 = 0 + -23

Combine like terms: 0 + -23 = -23
-16x + x2 = -23

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 = -23 + 64

Reorder the terms:
64 + -16x + x2 = -23 + 64

Combine like terms: -23 + 64 = 41
64 + -16x + x2 = 41

Factor a perfect square on the left side:
(x + -8)(x + -8) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(x + -8) equal to 6.403124237 and -6.403124237.

Subproblem 1

x + -8 = 6.403124237 Simplifying x + -8 = 6.403124237 Reorder the terms: -8 + x = 6.403124237 Solving -8 + x = 6.403124237 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 = 6.403124237 + 8 Combine like terms: -8 + 8 = 0 0 + x = 6.403124237 + 8 x = 6.403124237 + 8 Combine like terms: 6.403124237 + 8 = 14.403124237 x = 14.403124237 Simplifying x = 14.403124237

Subproblem 2

x + -8 = -6.403124237 Simplifying x + -8 = -6.403124237 Reorder the terms: -8 + x = -6.403124237 Solving -8 + x = -6.403124237 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 = -6.403124237 + 8 Combine like terms: -8 + 8 = 0 0 + x = -6.403124237 + 8 x = -6.403124237 + 8 Combine like terms: -6.403124237 + 8 = 1.596875763 x = 1.596875763 Simplifying x = 1.596875763

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.403124237, 1.596875763}

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