c^2+9c+36=0

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Solution for c^2+9c+36=0 equation:


Simplifying
c2 + 9c + 36 = 0

Reorder the terms:
36 + 9c + c2 = 0

Solving
36 + 9c + c2 = 0

Solving for variable 'c'.

Begin completing the square.

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + 9c + -36 + c2 = 0 + -36

Reorder the terms:
36 + -36 + 9c + c2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + 9c + c2 = 0 + -36
9c + c2 = 0 + -36

Combine like terms: 0 + -36 = -36
9c + c2 = -36

The c term is 9c.  Take half its coefficient (4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
9c + 20.25 + c2 = -36 + 20.25

Reorder the terms:
20.25 + 9c + c2 = -36 + 20.25

Combine like terms: -36 + 20.25 = -15.75
20.25 + 9c + c2 = -15.75

Factor a perfect square on the left side:
(c + 4.5)(c + 4.5) = -15.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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