Solution is in the attachment.
Answer: (5, -2, -3)
If there are that many things missing then go left to right; 5+1 then multiply the sum by ten
5+1=6
6x10=60
I hope I was helpful
(n+5)^2=48
sqrt both sides
n+4=+/-4√3
minus 4 both sides
n=-4+/-4√3
-4+4√3>0 so this cannot be the value of n
n=-4-4√3
the number is -4-4√3