16n^2+69n+80=0

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Solution for 16n^2+69n+80=0 equation:


Simplifying
16n2 + 69n + 80 = 0

Reorder the terms:
80 + 69n + 16n2 = 0

Solving
80 + 69n + 16n2 = 0

Solving for variable 'n'.

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

Divide each side by '16'.
5 + 4.3125n + n2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 4.3125n + -5 + n2 = 0 + -5

Reorder the terms:
5 + -5 + 4.3125n + n2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 4.3125n + n2 = 0 + -5
4.3125n + n2 = 0 + -5

Combine like terms: 0 + -5 = -5
4.3125n + n2 = -5

The n term is 4.3125n.  Take half its coefficient (2.15625).
Square it (4.649414063) and add it to both sides.

Add '4.649414063' to each side of the equation.
4.3125n + 4.649414063 + n2 = -5 + 4.649414063

Reorder the terms:
4.649414063 + 4.3125n + n2 = -5 + 4.649414063

Combine like terms: -5 + 4.649414063 = -0.350585937
4.649414063 + 4.3125n + n2 = -0.350585937

Factor a perfect square on the left side:
(n + 2.15625)(n + 2.15625) = -0.350585937

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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