n^2-8n+16=3

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Solution for n^2-8n+16=3 equation:


Simplifying
n2 + -8n + 16 = 3

Reorder the terms:
16 + -8n + n2 = 3

Solving
16 + -8n + n2 = 3

Solving for variable 'n'.

Reorder the terms:
16 + -3 + -8n + n2 = 3 + -3

Combine like terms: 16 + -3 = 13
13 + -8n + n2 = 3 + -3

Combine like terms: 3 + -3 = 0
13 + -8n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-13' to each side of the equation.
13 + -8n + -13 + n2 = 0 + -13

Reorder the terms:
13 + -13 + -8n + n2 = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -8n + n2 = 0 + -13
-8n + n2 = 0 + -13

Combine like terms: 0 + -13 = -13
-8n + n2 = -13

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

Add '16' to each side of the equation.
-8n + 16 + n2 = -13 + 16

Reorder the terms:
16 + -8n + n2 = -13 + 16

Combine like terms: -13 + 16 = 3
16 + -8n + n2 = 3

Factor a perfect square on the left side:
(n + -4)(n + -4) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(n + -4) equal to 1.732050808 and -1.732050808.

Subproblem 1

n + -4 = 1.732050808 Simplifying n + -4 = 1.732050808 Reorder the terms: -4 + n = 1.732050808 Solving -4 + n = 1.732050808 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + n = 1.732050808 + 4 Combine like terms: -4 + 4 = 0 0 + n = 1.732050808 + 4 n = 1.732050808 + 4 Combine like terms: 1.732050808 + 4 = 5.732050808 n = 5.732050808 Simplifying n = 5.732050808

Subproblem 2

n + -4 = -1.732050808 Simplifying n + -4 = -1.732050808 Reorder the terms: -4 + n = -1.732050808 Solving -4 + n = -1.732050808 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + n = -1.732050808 + 4 Combine like terms: -4 + 4 = 0 0 + n = -1.732050808 + 4 n = -1.732050808 + 4 Combine like terms: -1.732050808 + 4 = 2.267949192 n = 2.267949192 Simplifying n = 2.267949192

Solution

The solution to the problem is based on the solutions from the subproblems. n = {5.732050808, 2.267949192}

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