Solved

Solve
- x2+6x+y28y+21=0x ^ { 2 } + 6 x + y ^ { 2 } - 8 y + 21 = 0

Question 13

Multiple Choice

Solve.
- x2+6x+y28y+21=0x ^ { 2 } + 6 x + y ^ { 2 } - 8 y + 21 = 0


A) (3,4) ;r=4( 3 , - 4 ) ; r = 4
B) (3,4) ;r=2( - 3,4 ) ; r = 2
C) (3,4) ;r=4( - 3,4 ) ; r = 4
D) (3,4) ;r=2( 3 , - 4 ) ; r = 2

Correct Answer:

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