SOLUTION: please help me with this problem (y-2)^2=5

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Question 137739: please help me with this problem
(y-2)^2=5
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(y-2)^2=5
y^2-4y+4-5=0
y^2+4y-1=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
y=(-4+-sqrt[4^2-4*1-1])/2*1
y=(-4+-sqrt[16+4])/2
y=(-4+-sqrt20)/2
y=(-4+-4.47)/2
y=(-4+4.47)/2
y=-.47/2
y=.235 answer.
y=(-4-4.47)/2
y=-8.47/2
y=-4.235 answer.