7n^2+n+4=0

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Solution for 7n^2+n+4=0 equation:


Simplifying
7n2 + n + 4 = 0

Reorder the terms:
4 + n + 7n2 = 0

Solving
4 + n + 7n2 = 0

Solving for variable 'n'.

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

Divide each side by '7'.
0.5714285714 + 0.1428571429n + n2 = 0

Move the constant term to the right:

Add '-0.5714285714' to each side of the equation.
0.5714285714 + 0.1428571429n + -0.5714285714 + n2 = 0 + -0.5714285714

Reorder the terms:
0.5714285714 + -0.5714285714 + 0.1428571429n + n2 = 0 + -0.5714285714

Combine like terms: 0.5714285714 + -0.5714285714 = 0.0000000000
0.0000000000 + 0.1428571429n + n2 = 0 + -0.5714285714
0.1428571429n + n2 = 0 + -0.5714285714

Combine like terms: 0 + -0.5714285714 = -0.5714285714
0.1428571429n + n2 = -0.5714285714

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.
0.1428571429n + 0.25 + n2 = -0.5714285714 + 0.25

Reorder the terms:
0.25 + 0.1428571429n + n2 = -0.5714285714 + 0.25

Combine like terms: -0.5714285714 + 0.25 = -0.3214285714
0.25 + 0.1428571429n + n2 = -0.3214285714

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = -0.3214285714

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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