35n^2+n+3=0

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Solution for 35n^2+n+3=0 equation:


Simplifying
35n2 + n + 3 = 0

Reorder the terms:
3 + n + 35n2 = 0

Solving
3 + n + 35n2 = 0

Solving for variable 'n'.

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

Divide each side by '35'.
0.08571428571 + 0.02857142857n + n2 = 0

Move the constant term to the right:

Add '-0.08571428571' to each side of the equation.
0.08571428571 + 0.02857142857n + -0.08571428571 + n2 = 0 + -0.08571428571

Reorder the terms:
0.08571428571 + -0.08571428571 + 0.02857142857n + n2 = 0 + -0.08571428571

Combine like terms: 0.08571428571 + -0.08571428571 = 0.00000000000
0.00000000000 + 0.02857142857n + n2 = 0 + -0.08571428571
0.02857142857n + n2 = 0 + -0.08571428571

Combine like terms: 0 + -0.08571428571 = -0.08571428571
0.02857142857n + n2 = -0.08571428571

The n term is n.  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.
0.02857142857n + 0.25 + n2 = -0.08571428571 + 0.25

Reorder the terms:
0.25 + 0.02857142857n + n2 = -0.08571428571 + 0.25

Combine like terms: -0.08571428571 + 0.25 = 0.16428571429
0.25 + 0.02857142857n + n2 = 0.16428571429

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = 0.16428571429

Calculate the square root of the right side: 0.405321742

Break this problem into two subproblems by setting 
(n + 0.5) equal to 0.405321742 and -0.405321742.

Subproblem 1

n + 0.5 = 0.405321742 Simplifying n + 0.5 = 0.405321742 Reorder the terms: 0.5 + n = 0.405321742 Solving 0.5 + n = 0.405321742 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 = 0.405321742 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 0.405321742 + -0.5 n = 0.405321742 + -0.5 Combine like terms: 0.405321742 + -0.5 = -0.094678258 n = -0.094678258 Simplifying n = -0.094678258

Subproblem 2

n + 0.5 = -0.405321742 Simplifying n + 0.5 = -0.405321742 Reorder the terms: 0.5 + n = -0.405321742 Solving 0.5 + n = -0.405321742 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 = -0.405321742 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -0.405321742 + -0.5 n = -0.405321742 + -0.5 Combine like terms: -0.405321742 + -0.5 = -0.905321742 n = -0.905321742 Simplifying n = -0.905321742

Solution

The solution to the problem is based on the solutions from the subproblems. n = {-0.094678258, -0.905321742}

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