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(1 ) a) Find the center and radius of the circle x 2 -4x+y 2 +12y+4=0. also graph the equation 2x 2 +2y 2 =4y+96

(1) a) Find the center and radius of the circle x²-4x+y²+12y+4=0.
also graph the equation 2x²+2y²=4y+96 .

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