SOLUTION: Y^2-4y+4=36 What is the exact solution What is the approximate solution

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Question 176182: Y^2-4y+4=36
What is the exact solution
What is the approximate solution
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
y%5E2-4y%2B4=36
y%5E2-4y-32=0
You can factor this quadratic equation.
%28y-8%29%28y%2B4%29=0
Two solutions
y%5B1%5D-8=0
y%5B1%5D=8
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y%5B2%5D%2B4=0
y%5B2%5D=-4
Not sure about approximate solutions in this case.