SOLUTION: simplify x^2+y^2-4x-2y-15=0

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Question 663224: simplify x^2+y^2-4x-2y-15=0
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Starting with
x%5E2+%2B+y%5E2+-+4x+-+2y+-+15+=+0+
Group each variable
x%5E2+-+4x+%2B+y%5E2+-+2y+-+15+=+0
Factor out common variable
x(x-4) + y(y-2) - 15 = 0
Standard form by adding 15 to both sides
x(x-4) + y(y-2) = 15
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