11n^2=-8n+17

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Solution for 11n^2=-8n+17 equation:


Simplifying
11n2 = -8n + 17

Reorder the terms:
11n2 = 17 + -8n

Solving
11n2 = 17 + -8n

Solving for variable 'n'.

Reorder the terms:
-17 + 8n + 11n2 = 17 + -8n + -17 + 8n

Reorder the terms:
-17 + 8n + 11n2 = 17 + -17 + -8n + 8n

Combine like terms: 17 + -17 = 0
-17 + 8n + 11n2 = 0 + -8n + 8n
-17 + 8n + 11n2 = -8n + 8n

Combine like terms: -8n + 8n = 0
-17 + 8n + 11n2 = 0

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

Divide each side by '11'.
-1.545454545 + 0.7272727273n + n2 = 0

Move the constant term to the right:

Add '1.545454545' to each side of the equation.
-1.545454545 + 0.7272727273n + 1.545454545 + n2 = 0 + 1.545454545

Reorder the terms:
-1.545454545 + 1.545454545 + 0.7272727273n + n2 = 0 + 1.545454545

Combine like terms: -1.545454545 + 1.545454545 = 0.000000000
0.000000000 + 0.7272727273n + n2 = 0 + 1.545454545
0.7272727273n + n2 = 0 + 1.545454545

Combine like terms: 0 + 1.545454545 = 1.545454545
0.7272727273n + n2 = 1.545454545

The n term is 0.7272727273n.  Take half its coefficient (0.3636363637).
Square it (0.1322314050) and add it to both sides.

Add '0.1322314050' to each side of the equation.
0.7272727273n + 0.1322314050 + n2 = 1.545454545 + 0.1322314050

Reorder the terms:
0.1322314050 + 0.7272727273n + n2 = 1.545454545 + 0.1322314050

Combine like terms: 1.545454545 + 0.1322314050 = 1.67768595
0.1322314050 + 0.7272727273n + n2 = 1.67768595

Factor a perfect square on the left side:
(n + 0.3636363637)(n + 0.3636363637) = 1.67768595

Calculate the square root of the right side: 1.295255168

Break this problem into two subproblems by setting 
(n + 0.3636363637) equal to 1.295255168 and -1.295255168.

Subproblem 1

n + 0.3636363637 = 1.295255168 Simplifying n + 0.3636363637 = 1.295255168 Reorder the terms: 0.3636363637 + n = 1.295255168 Solving 0.3636363637 + n = 1.295255168 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.3636363637' to each side of the equation. 0.3636363637 + -0.3636363637 + n = 1.295255168 + -0.3636363637 Combine like terms: 0.3636363637 + -0.3636363637 = 0.0000000000 0.0000000000 + n = 1.295255168 + -0.3636363637 n = 1.295255168 + -0.3636363637 Combine like terms: 1.295255168 + -0.3636363637 = 0.9316188043 n = 0.9316188043 Simplifying n = 0.9316188043

Subproblem 2

n + 0.3636363637 = -1.295255168 Simplifying n + 0.3636363637 = -1.295255168 Reorder the terms: 0.3636363637 + n = -1.295255168 Solving 0.3636363637 + n = -1.295255168 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.3636363637' to each side of the equation. 0.3636363637 + -0.3636363637 + n = -1.295255168 + -0.3636363637 Combine like terms: 0.3636363637 + -0.3636363637 = 0.0000000000 0.0000000000 + n = -1.295255168 + -0.3636363637 n = -1.295255168 + -0.3636363637 Combine like terms: -1.295255168 + -0.3636363637 = -1.6588915317 n = -1.6588915317 Simplifying n = -1.6588915317

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.9316188043, -1.6588915317}

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