Choose a random number , square it , then add 20
Ex) 2
= 4
20+4=24
Just keep doing that till all the squares are filled
Answer:
8
Step-by-step explanation:
Hello :
13! = 13×12×<span>11!
</span>13!-11!= (13×12×11! ) - <span>11!
= </span>11! (13×12 -1)
=11! (156 - 1)
= 11! ( 155)
= 11!(31×5)
13!-11! = 31( 11!×5)
so : <span>13!-11! se divide cu 31</span>