Hello!
x^2+8x-y^2-10y= -7
I want to make this equation into the circle equation which I would need to complete the square.
I got (x+4)^2 - (y-5)^2 = -16
Another source says it’s (x+4)^2 - (y-5)^2 = 34
Which one would be correct in this case?
why do we add -25 though? isn’t it supposed to be talking in terms of completing the square we have the -10 and then square it which would give us 25 right?
Oh that makes more sense now! Thanks.
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