11n^2+10n-17=0

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Solution for 11n^2+10n-17=0 equation:


Simplifying
11n2 + 10n + -17 = 0

Reorder the terms:
-17 + 10n + 11n2 = 0

Solving
-17 + 10n + 11n2 = 0

Solving for variable 'n'.

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

Divide each side by '11'.
-1.545454545 + 0.9090909091n + n2 = 0

Move the constant term to the right:

Add '1.545454545' to each side of the equation.
-1.545454545 + 0.9090909091n + 1.545454545 + n2 = 0 + 1.545454545

Reorder the terms:
-1.545454545 + 1.545454545 + 0.9090909091n + n2 = 0 + 1.545454545

Combine like terms: -1.545454545 + 1.545454545 = 0.000000000
0.000000000 + 0.9090909091n + n2 = 0 + 1.545454545
0.9090909091n + n2 = 0 + 1.545454545

Combine like terms: 0 + 1.545454545 = 1.545454545
0.9090909091n + n2 = 1.545454545

The n term is 0.9090909091n.  Take half its coefficient (0.4545454546).
Square it (0.2066115703) and add it to both sides.

Add '0.2066115703' to each side of the equation.
0.9090909091n + 0.2066115703 + n2 = 1.545454545 + 0.2066115703

Reorder the terms:
0.2066115703 + 0.9090909091n + n2 = 1.545454545 + 0.2066115703

Combine like terms: 1.545454545 + 0.2066115703 = 1.7520661153
0.2066115703 + 0.9090909091n + n2 = 1.7520661153

Factor a perfect square on the left side:
(n + 0.4545454546)(n + 0.4545454546) = 1.7520661153

Calculate the square root of the right side: 1.323656343

Break this problem into two subproblems by setting 
(n + 0.4545454546) equal to 1.323656343 and -1.323656343.

Subproblem 1

n + 0.4545454546 = 1.323656343 Simplifying n + 0.4545454546 = 1.323656343 Reorder the terms: 0.4545454546 + n = 1.323656343 Solving 0.4545454546 + n = 1.323656343 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.4545454546' to each side of the equation. 0.4545454546 + -0.4545454546 + n = 1.323656343 + -0.4545454546 Combine like terms: 0.4545454546 + -0.4545454546 = 0.0000000000 0.0000000000 + n = 1.323656343 + -0.4545454546 n = 1.323656343 + -0.4545454546 Combine like terms: 1.323656343 + -0.4545454546 = 0.8691108884 n = 0.8691108884 Simplifying n = 0.8691108884

Subproblem 2

n + 0.4545454546 = -1.323656343 Simplifying n + 0.4545454546 = -1.323656343 Reorder the terms: 0.4545454546 + n = -1.323656343 Solving 0.4545454546 + n = -1.323656343 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.4545454546' to each side of the equation. 0.4545454546 + -0.4545454546 + n = -1.323656343 + -0.4545454546 Combine like terms: 0.4545454546 + -0.4545454546 = 0.0000000000 0.0000000000 + n = -1.323656343 + -0.4545454546 n = -1.323656343 + -0.4545454546 Combine like terms: -1.323656343 + -0.4545454546 = -1.7782017976 n = -1.7782017976 Simplifying n = -1.7782017976

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.8691108884, -1.7782017976}

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