y^2+8y+55=0

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Solution for y^2+8y+55=0 equation:


Simplifying
y2 + 8y + 55 = 0

Reorder the terms:
55 + 8y + y2 = 0

Solving
55 + 8y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-55' to each side of the equation.
55 + 8y + -55 + y2 = 0 + -55

Reorder the terms:
55 + -55 + 8y + y2 = 0 + -55

Combine like terms: 55 + -55 = 0
0 + 8y + y2 = 0 + -55
8y + y2 = 0 + -55

Combine like terms: 0 + -55 = -55
8y + y2 = -55

The y term is 8y.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8y + 16 + y2 = -55 + 16

Reorder the terms:
16 + 8y + y2 = -55 + 16

Combine like terms: -55 + 16 = -39
16 + 8y + y2 = -39

Factor a perfect square on the left side:
(y + 4)(y + 4) = -39

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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