3y^2+2y+15=0

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Solution for 3y^2+2y+15=0 equation:


Simplifying
3y2 + 2y + 15 = 0

Reorder the terms:
15 + 2y + 3y2 = 0

Solving
15 + 2y + 3y2 = 0

Solving for variable 'y'.

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

Divide each side by '3'.
5 + 0.6666666667y + y2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 0.6666666667y + -5 + y2 = 0 + -5

Reorder the terms:
5 + -5 + 0.6666666667y + y2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 0.6666666667y + y2 = 0 + -5
0.6666666667y + y2 = 0 + -5

Combine like terms: 0 + -5 = -5
0.6666666667y + y2 = -5

The y term is 0.6666666667y.  Take half its coefficient (0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
0.6666666667y + 0.1111111112 + y2 = -5 + 0.1111111112

Reorder the terms:
0.1111111112 + 0.6666666667y + y2 = -5 + 0.1111111112

Combine like terms: -5 + 0.1111111112 = -4.8888888888
0.1111111112 + 0.6666666667y + y2 = -4.8888888888

Factor a perfect square on the left side:
(y + 0.3333333334)(y + 0.3333333334) = -4.8888888888

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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