9y^2+12y+64=0

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Solution for 9y^2+12y+64=0 equation:


Simplifying
9y2 + 12y + 64 = 0

Reorder the terms:
64 + 12y + 9y2 = 0

Solving
64 + 12y + 9y2 = 0

Solving for variable 'y'.

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

Divide each side by '9'.
7.111111111 + 1.333333333y + y2 = 0

Move the constant term to the right:

Add '-7.111111111' to each side of the equation.
7.111111111 + 1.333333333y + -7.111111111 + y2 = 0 + -7.111111111

Reorder the terms:
7.111111111 + -7.111111111 + 1.333333333y + y2 = 0 + -7.111111111

Combine like terms: 7.111111111 + -7.111111111 = 0.000000000
0.000000000 + 1.333333333y + y2 = 0 + -7.111111111
1.333333333y + y2 = 0 + -7.111111111

Combine like terms: 0 + -7.111111111 = -7.111111111
1.333333333y + y2 = -7.111111111

The y term is 1.333333333y.  Take half its coefficient (0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
1.333333333y + 0.4444444442 + y2 = -7.111111111 + 0.4444444442

Reorder the terms:
0.4444444442 + 1.333333333y + y2 = -7.111111111 + 0.4444444442

Combine like terms: -7.111111111 + 0.4444444442 = -6.6666666668
0.4444444442 + 1.333333333y + y2 = -6.6666666668

Factor a perfect square on the left side:
(y + 0.6666666665)(y + 0.6666666665) = -6.6666666668

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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