9y^2+16y+256=0

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Solution for 9y^2+16y+256=0 equation:


Simplifying
9y2 + 16y + 256 = 0

Reorder the terms:
256 + 16y + 9y2 = 0

Solving
256 + 16y + 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'.
28.44444444 + 1.777777778y + y2 = 0

Move the constant term to the right:

Add '-28.44444444' to each side of the equation.
28.44444444 + 1.777777778y + -28.44444444 + y2 = 0 + -28.44444444

Reorder the terms:
28.44444444 + -28.44444444 + 1.777777778y + y2 = 0 + -28.44444444

Combine like terms: 28.44444444 + -28.44444444 = 0.00000000
0.00000000 + 1.777777778y + y2 = 0 + -28.44444444
1.777777778y + y2 = 0 + -28.44444444

Combine like terms: 0 + -28.44444444 = -28.44444444
1.777777778y + y2 = -28.44444444

The y term is 1.777777778y.  Take half its coefficient (0.888888889).
Square it (0.7901234570) and add it to both sides.

Add '0.7901234570' to each side of the equation.
1.777777778y + 0.7901234570 + y2 = -28.44444444 + 0.7901234570

Reorder the terms:
0.7901234570 + 1.777777778y + y2 = -28.44444444 + 0.7901234570

Combine like terms: -28.44444444 + 0.7901234570 = -27.654320983
0.7901234570 + 1.777777778y + y2 = -27.654320983

Factor a perfect square on the left side:
(y + 0.888888889)(y + 0.888888889) = -27.654320983

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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