Answer:
100
Step-by-step explanation:
Hello,
We are looking for the surrounding perfect squares.
[tex]\sqrt{8000}=89.44272...[/tex]
so
[tex]7921=89^2< 8000<90^2=8100[/tex]
So we need 100 more soldiers to form a perfect square.
Hope this helps.
Do not hesitate if you need further explanation.
Thank you