SOLUTION: Give an exact and approximate solutions to three decimal points. y^2 - 18y + 81 = 64 Type an exact number, use radicals if necessary, rationalize all denominators, express

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Question 321266: Give an exact and approximate solutions to three decimal points.
y^2 - 18y + 81 = 64
Type an exact number, use radicals if necessary, rationalize all denominators, express complex terms in terms of i, and use comma to separate.
Thank you!!

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given equation.


Factor the left side.


Take the square root of both sides.


or Break up the "plus/minus" to form two equations.


or Take the square root of to get .


or Add to both sides.


or Combine like terms.


--------------------------------------


Answer:


So the solutions are or .

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