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Natalka [10]
3 years ago
14

Help help help!!!! #7 :(

Mathematics
1 answer:
asambeis [7]3 years ago
7 0

{x}^{2}  + 2x +  {y }^{2}  - 4y = 12 \\ ( {(x + 1)}^{2}  - 1) + ( {(y - 2)}^{2} - 4) = 12 \\  {(x + 1) }^{2}   +  {(y - 2)}^{2}  = 17 \\ so \: \: c \: ( - 1 \:  \: 2)
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