Answer:
The answer is add 4.
Step-by-step explanation:
I know this because if you add 4 to 43 that's 47 so that's 1 of the blanks. Add another 4 that's 51. that's another 1. and that's last one is add 4 which makes 54.
Hope this helps.
Well the square root of 60 is 7.745966692 so 8 would be the absolute closest you can get
Answer: x^2+y^2+2x-18y+18=0 in standard form is (x+1)^2+(y-9)^2=64