Answers

2016-01-06T19:02:25+08:00
  the standard form of x+ x^{2}-2y=64-y^{2}  is  x^{3}-64=0 

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2016-01-06T21:00:24+08:00
X+x²-2y=64-y²
x²+y²+x-2y-64=0
x²+x+y²-2y=64
x²+x+y²-2y+1=64+1
standard form: (x)+(y-1)²=65
center (0,1) radius=√65
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