k^2+k+66.6=0

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Solution for k^2+k+66.6=0 equation: 


Simplifying
k2 + k + 66.6 = 0

Reorder the terms:
66.6 + k + k2 = 0

Solving
66.6 + k + k2 = 0

Solving for variable 'k'.

Begin completing the square.

Move the constant term to the right:

Add '-66.6' to each side of the equation.
66.6 + k + -66.6 + k2 = 0 + -66.6

Reorder the terms:
66.6 + -66.6 + k + k2 = 0 + -66.6

Combine like terms: 66.6 + -66.6 = 0.0
0.0 + k + k2 = 0 + -66.6
k + k2 = 0 + -66.6

Combine like terms: 0 + -66.6 = -66.6
k + k2 = -66.6

The k term is k.  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.
k + 0.25 + k2 = -66.6 + 0.25

Reorder the terms:
0.25 + k + k2 = -66.6 + 0.25

Combine like terms: -66.6 + 0.25 = -66.35
0.25 + k + k2 = -66.35

Factor a perfect square on the left side:
(k + 0.5)(k + 0.5) = -66.35

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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