-18c(-17c)+9c+c+7c=-18

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Solution for -18c(-17c)+9c+c+7c=-18 equation:


Simplifying
-18c(-17c) + 9c + c + 7c = -18

Remove parenthesis around (-17c)
-18c * -17c + 9c + c + 7c = -18

Reorder the terms for easier multiplication:
-18 * -17c * c + 9c + c + 7c = -18

Multiply -18 * -17
306c * c + 9c + c + 7c = -18

Multiply c * c
306c2 + 9c + c + 7c = -18

Reorder the terms:
9c + c + 7c + 306c2 = -18

Combine like terms: 9c + c = 10c
10c + 7c + 306c2 = -18

Combine like terms: 10c + 7c = 17c
17c + 306c2 = -18

Solving
17c + 306c2 = -18

Solving for variable 'c'.

Reorder the terms:
18 + 17c + 306c2 = -18 + 18

Combine like terms: -18 + 18 = 0
18 + 17c + 306c2 = 0

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

Divide each side by '306'.
0.05882352941 + 0.05555555556c + c2 = 0

Move the constant term to the right:

Add '-0.05882352941' to each side of the equation.
0.05882352941 + 0.05555555556c + -0.05882352941 + c2 = 0 + -0.05882352941

Reorder the terms:
0.05882352941 + -0.05882352941 + 0.05555555556c + c2 = 0 + -0.05882352941

Combine like terms: 0.05882352941 + -0.05882352941 = 0.00000000000
0.00000000000 + 0.05555555556c + c2 = 0 + -0.05882352941
0.05555555556c + c2 = 0 + -0.05882352941

Combine like terms: 0 + -0.05882352941 = -0.05882352941
0.05555555556c + c2 = -0.05882352941

The c term is 0.05555555556c.  Take half its coefficient (0.02777777778).
Square it (0.0007716049384) and add it to both sides.

Add '0.0007716049384' to each side of the equation.
0.05555555556c + 0.0007716049384 + c2 = -0.05882352941 + 0.0007716049384

Reorder the terms:
0.0007716049384 + 0.05555555556c + c2 = -0.05882352941 + 0.0007716049384

Combine like terms: -0.05882352941 + 0.0007716049384 = -0.0580519244716
0.0007716049384 + 0.05555555556c + c2 = -0.0580519244716

Factor a perfect square on the left side:
(c + 0.02777777778)(c + 0.02777777778) = -0.0580519244716

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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