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a=-3, b=2, r=√8
(x-a)²+(y-b)² = r²
(x+3)²+(y-2)²= 8 > forma reduzida
x²+6x+9+y²-4y+4 -8=0
x²+y²+6x-4y+5=0 > forma geral
(x+3)²+(y-2)²=8
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Verified answer
a=-3, b=2, r=√8
(x-a)²+(y-b)² = r²
(x+3)²+(y-2)²= 8 > forma reduzida
x²+6x+9+y²-4y+4 -8=0
x²+y²+6x-4y+5=0 > forma geral
(x+3)²+(y-2)²=8