9y^2+66y+122=0

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Solution for 9y^2+66y+122=0 equation:


Simplifying
9y2 + 66y + 122 = 0

Reorder the terms:
122 + 66y + 9y2 = 0

Solving
122 + 66y + 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'.
13.55555556 + 7.333333333y + y2 = 0

Move the constant term to the right:

Add '-13.55555556' to each side of the equation.
13.55555556 + 7.333333333y + -13.55555556 + y2 = 0 + -13.55555556

Reorder the terms:
13.55555556 + -13.55555556 + 7.333333333y + y2 = 0 + -13.55555556

Combine like terms: 13.55555556 + -13.55555556 = 0.00000000
0.00000000 + 7.333333333y + y2 = 0 + -13.55555556
7.333333333y + y2 = 0 + -13.55555556

Combine like terms: 0 + -13.55555556 = -13.55555556
7.333333333y + y2 = -13.55555556

The y term is 7.333333333y.  Take half its coefficient (3.666666667).
Square it (13.44444445) and add it to both sides.

Add '13.44444445' to each side of the equation.
7.333333333y + 13.44444445 + y2 = -13.55555556 + 13.44444445

Reorder the terms:
13.44444445 + 7.333333333y + y2 = -13.55555556 + 13.44444445

Combine like terms: -13.55555556 + 13.44444445 = -0.11111111
13.44444445 + 7.333333333y + y2 = -0.11111111

Factor a perfect square on the left side:
(y + 3.666666667)(y + 3.666666667) = -0.11111111

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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