8n^2-17=8n

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Solution for 8n^2-17=8n equation:


Simplifying
8n2 + -17 = 8n

Reorder the terms:
-17 + 8n2 = 8n

Solving
-17 + 8n2 = 8n

Solving for variable 'n'.

Reorder the terms:
-17 + -8n + 8n2 = 8n + -8n

Combine like terms: 8n + -8n = 0
-17 + -8n + 8n2 = 0

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

Divide each side by '8'.
-2.125 + -1n + n2 = 0

Move the constant term to the right:

Add '2.125' to each side of the equation.
-2.125 + -1n + 2.125 + n2 = 0 + 2.125

Reorder the terms:
-2.125 + 2.125 + -1n + n2 = 0 + 2.125

Combine like terms: -2.125 + 2.125 = 0.000
0.000 + -1n + n2 = 0 + 2.125
-1n + n2 = 0 + 2.125

Combine like terms: 0 + 2.125 = 2.125
-1n + n2 = 2.125

The n term is -1n.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1n + 0.25 + n2 = 2.125 + 0.25

Reorder the terms:
0.25 + -1n + n2 = 2.125 + 0.25

Combine like terms: 2.125 + 0.25 = 2.375
0.25 + -1n + n2 = 2.375

Factor a perfect square on the left side:
(n + -0.5)(n + -0.5) = 2.375

Calculate the square root of the right side: 1.541103501

Break this problem into two subproblems by setting 
(n + -0.5) equal to 1.541103501 and -1.541103501.

Subproblem 1

n + -0.5 = 1.541103501 Simplifying n + -0.5 = 1.541103501 Reorder the terms: -0.5 + n = 1.541103501 Solving -0.5 + n = 1.541103501 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + n = 1.541103501 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = 1.541103501 + 0.5 n = 1.541103501 + 0.5 Combine like terms: 1.541103501 + 0.5 = 2.041103501 n = 2.041103501 Simplifying n = 2.041103501

Subproblem 2

n + -0.5 = -1.541103501 Simplifying n + -0.5 = -1.541103501 Reorder the terms: -0.5 + n = -1.541103501 Solving -0.5 + n = -1.541103501 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + n = -1.541103501 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = -1.541103501 + 0.5 n = -1.541103501 + 0.5 Combine like terms: -1.541103501 + 0.5 = -1.041103501 n = -1.041103501 Simplifying n = -1.041103501

Solution

The solution to the problem is based on the solutions from the subproblems. n = {2.041103501, -1.041103501}

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