y^2-16y+64+81=0

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Solution for y^2-16y+64+81=0 equation:


Simplifying
y2 + -16y + 64 + 81 = 0

Reorder the terms:
64 + 81 + -16y + y2 = 0

Combine like terms: 64 + 81 = 145
145 + -16y + y2 = 0

Solving
145 + -16y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-145' to each side of the equation.
145 + -16y + -145 + y2 = 0 + -145

Reorder the terms:
145 + -145 + -16y + y2 = 0 + -145

Combine like terms: 145 + -145 = 0
0 + -16y + y2 = 0 + -145
-16y + y2 = 0 + -145

Combine like terms: 0 + -145 = -145
-16y + y2 = -145

The y term is -16y.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16y + 64 + y2 = -145 + 64

Reorder the terms:
64 + -16y + y2 = -145 + 64

Combine like terms: -145 + 64 = -81
64 + -16y + y2 = -81

Factor a perfect square on the left side:
(y + -8)(y + -8) = -81

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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