c^2+4c+77=0

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Solution for c^2+4c+77=0 equation:


Simplifying
c2 + 4c + 77 = 0

Reorder the terms:
77 + 4c + c2 = 0

Solving
77 + 4c + c2 = 0

Solving for variable 'c'.

Begin completing the square.

Move the constant term to the right:

Add '-77' to each side of the equation.
77 + 4c + -77 + c2 = 0 + -77

Reorder the terms:
77 + -77 + 4c + c2 = 0 + -77

Combine like terms: 77 + -77 = 0
0 + 4c + c2 = 0 + -77
4c + c2 = 0 + -77

Combine like terms: 0 + -77 = -77
4c + c2 = -77

The c term is 4c.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4c + 4 + c2 = -77 + 4

Reorder the terms:
4 + 4c + c2 = -77 + 4

Combine like terms: -77 + 4 = -73
4 + 4c + c2 = -73

Factor a perfect square on the left side:
(c + 2)(c + 2) = -73

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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