y+9+y^2=4

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Solution for y+9+y^2=4 equation:


Simplifying
y + 9 + y2 = 4

Reorder the terms:
9 + y + y2 = 4

Solving
9 + y + y2 = 4

Solving for variable 'y'.

Reorder the terms:
9 + -4 + y + y2 = 4 + -4

Combine like terms: 9 + -4 = 5
5 + y + y2 = 4 + -4

Combine like terms: 4 + -4 = 0
5 + y + y2 = 0

Begin completing the square.

Move the constant term to the right:

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

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

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

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

The y term is y.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
y + 0.25 + y2 = -5 + 0.25

Reorder the terms:
0.25 + y + y2 = -5 + 0.25

Combine like terms: -5 + 0.25 = -4.75
0.25 + y + y2 = -4.75

Factor a perfect square on the left side:
(y + 0.5)(y + 0.5) = -4.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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