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Lesechka [4]
2 years ago
12

Part a) Write the equation of the circle by completing the square.

Mathematics
1 answer:
Veronika [31]2 years ago
4 0
X² +4x+y²-2y=20
x²+2*2x+4 +y²-2y+1    =20+4+1
(x+2)²+(y-1)²= 25
(x+2)²+(y-1)²= 5²
center (-2,1)
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