plete the square and write the equation in standard form. Then give the center and ra 16x+64 + y-8y+16=64 A. (x-4)+(y+8) = 64 Center: (-4,8), radius: 64 B. (x+8)+(y-4) = 64 Center: (8,-4), radius: 64 C. (x+8)+(y-4)=64 Center: (-8,4), radius: 8 D. (x-4)+(y+8)=64 Center: (4,-8), radius: 8